Home / 405,385.50-608,176.68-124,902.74

Finding the Fourth Proportional to 405,385.50, 608,176.68 and 124,902.74

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Solution

The fourth proportional to 405,385.50, 608,176.68 and 124,902.74 is: 187,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,385.50 : 608,176.68 = 124,902.74 : x
  2. Step 2: Convert to fraction form
    405,385.50/608,176.68 = 124,902.74/x
  3. Step 3: Cross multiply
    405,385.50x = 608,176.68 × 124,902.74
  4. Step 4: Simplify right side
    405,385.50x = 75,962,933,736.10
  5. Step 5: Solve for x
    x = 75,962,933,736.10/405,385.50
  6. Step 6: Final answer
    x = 187,384.44

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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.