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Finding the Fourth Proportional to 487,270.35, 730,905.53 and 206,751.15

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Solution

The fourth proportional to 487,270.35, 730,905.53 and 206,751.15 is: 310,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,270.35 : 730,905.53 = 206,751.15 : x
  2. Step 2: Convert to fraction form
    487,270.35/730,905.53 = 206,751.15/x
  3. Step 3: Cross multiply
    487,270.35x = 730,905.53 × 206,751.15
  4. Step 4: Simplify right side
    487,270.35x = 151,115,557,835.10
  5. Step 5: Solve for x
    x = 151,115,557,835.10/487,270.35
  6. Step 6: Final answer
    x = 310,126.73

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Similar ratio
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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.