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Finding the Fourth Proportional to 387,957.94, 535,627.89 and 265,654.96

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Solution

The fourth proportional to 387,957.94, 535,627.89 and 265,654.96 is: 366,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,957.94 : 535,627.89 = 265,654.96 : x
  2. Step 2: Convert to fraction form
    387,957.94/535,627.89 = 265,654.96/x
  3. Step 3: Cross multiply
    387,957.94x = 535,627.89 × 265,654.96
  4. Step 4: Simplify right side
    387,957.94x = 142,292,204,353.77
  5. Step 5: Solve for x
    x = 142,292,204,353.77/387,957.94
  6. Step 6: Final answer
    x = 366,772.25

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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.