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Finding the Fourth Proportional to 487,273.60, 730,910.40 and 206,754.40

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Solution

The fourth proportional to 487,273.60, 730,910.40 and 206,754.40 is: 310,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,273.60 : 730,910.40 = 206,754.40 : x
  2. Step 2: Convert to fraction form
    487,273.60/730,910.40 = 206,754.40/x
  3. Step 3: Cross multiply
    487,273.60x = 730,910.40 × 206,754.40
  4. Step 4: Simplify right side
    487,273.60x = 151,118,941,205.76
  5. Step 5: Solve for x
    x = 151,118,941,205.76/487,273.60
  6. Step 6: Final answer
    x = 310,131.60

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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.