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Finding the Fourth Proportional to 357,930, 536,898.24 and 108,612

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Solution

The fourth proportional to 357,930, 536,898.24 and 108,612 is: 162,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,930 : 536,898.24 = 108,612 : x
  2. Step 2: Convert to fraction form
    357,930/536,898.24 = 108,612/x
  3. Step 3: Cross multiply
    357,930x = 536,898.24 × 108,612
  4. Step 4: Simplify right side
    357,930x = 58,313,591,642.88
  5. Step 5: Solve for x
    x = 58,313,591,642.88/357,930
  6. Step 6: Final answer
    x = 162,918.98

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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.