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Finding the Fourth Proportional to 501.19, 751.78 and 433.53

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Solution

The fourth proportional to 501.19, 751.78 and 433.53 is: 650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.19 : 751.78 = 433.53 : x
  2. Step 2: Convert to fraction form
    501.19/751.78 = 433.53/x
  3. Step 3: Cross multiply
    501.19x = 751.78 × 433.53
  4. Step 4: Simplify right side
    501.19x = 325,917.61
  5. Step 5: Solve for x
    x = 325,917.61/501.19
  6. Step 6: Final answer
    x = 650.29

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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.