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Finding the Fourth Proportional to 387,267.72, 581,128.94 and 162,610.88

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Solution

The fourth proportional to 387,267.72, 581,128.94 and 162,610.88 is: 244,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,267.72 : 581,128.94 = 162,610.88 : x
  2. Step 2: Convert to fraction form
    387,267.72/581,128.94 = 162,610.88/x
  3. Step 3: Cross multiply
    387,267.72x = 581,128.94 × 162,610.88
  4. Step 4: Simplify right side
    387,267.72x = 94,497,888,326.87
  5. Step 5: Solve for x
    x = 94,497,888,326.87/387,267.72
  6. Step 6: Final answer
    x = 244,011.79

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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.