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Finding the Fourth Proportional to 387,744.48, 581,841.48 and 163,087.20

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Solution

The fourth proportional to 387,744.48, 581,841.48 and 163,087.20 is: 244,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,744.48 : 581,841.48 = 163,087.20 : x
  2. Step 2: Convert to fraction form
    387,744.48/581,841.48 = 163,087.20/x
  3. Step 3: Cross multiply
    387,744.48x = 581,841.48 × 163,087.20
  4. Step 4: Simplify right side
    387,744.48x = 94,890,897,817.06
  5. Step 5: Solve for x
    x = 94,890,897,817.06/387,744.48
  6. Step 6: Final answer
    x = 244,725.34

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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.