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Finding the Fourth Proportional to 387,854.73, 535,260.15 and 226,804.05

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Solution

The fourth proportional to 387,854.73, 535,260.15 and 226,804.05 is: 313,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,854.73 : 535,260.15 = 226,804.05 : x
  2. Step 2: Convert to fraction form
    387,854.73/535,260.15 = 226,804.05/x
  3. Step 3: Cross multiply
    387,854.73x = 535,260.15 × 226,804.05
  4. Step 4: Simplify right side
    387,854.73x = 121,399,169,823.61
  5. Step 5: Solve for x
    x = 121,399,169,823.61/387,854.73
  6. Step 6: Final answer
    x = 313,001.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.