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Finding the Fourth Proportional to 503,670.40, 755,587.60 and 148,720.32

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Solution

The fourth proportional to 503,670.40, 755,587.60 and 148,720.32 is: 223,104.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,670.40 : 755,587.60 = 148,720.32 : x
  2. Step 2: Convert to fraction form
    503,670.40/755,587.60 = 148,720.32/x
  3. Step 3: Cross multiply
    503,670.40x = 755,587.60 × 148,720.32
  4. Step 4: Simplify right side
    503,670.40x = 112,371,229,660.03
  5. Step 5: Solve for x
    x = 112,371,229,660.03/503,670.40
  6. Step 6: Final answer
    x = 223,104.69

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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.