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Finding the Fourth Proportional to 503,607.40, 755,411.10 and 188,047.60

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Solution

The fourth proportional to 503,607.40, 755,411.10 and 188,047.60 is: 282,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,607.40 : 755,411.10 = 188,047.60 : x
  2. Step 2: Convert to fraction form
    503,607.40/755,411.10 = 188,047.60/x
  3. Step 3: Cross multiply
    503,607.40x = 755,411.10 × 188,047.60
  4. Step 4: Simplify right side
    503,607.40x = 142,053,244,368.36
  5. Step 5: Solve for x
    x = 142,053,244,368.36/503,607.40
  6. Step 6: Final answer
    x = 282,071.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.