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Finding the Fourth Proportional to 387,267.45, 581,128.53 and 162,610.62

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Solution

The fourth proportional to 387,267.45, 581,128.53 and 162,610.62 is: 244,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,267.45 : 581,128.53 = 162,610.62 : x
  2. Step 2: Convert to fraction form
    387,267.45/581,128.53 = 162,610.62/x
  3. Step 3: Cross multiply
    387,267.45x = 581,128.53 × 162,610.62
  4. Step 4: Simplify right side
    387,267.45x = 94,497,670,562.99
  5. Step 5: Solve for x
    x = 94,497,670,562.99/387,267.45
  6. Step 6: Final answer
    x = 244,011.39

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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.