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Finding the Fourth Proportional to 600,377.70, 900,920.12 and 221,565

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Solution

The fourth proportional to 600,377.70, 900,920.12 and 221,565 is: 332,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,377.70 : 900,920.12 = 221,565 : x
  2. Step 2: Convert to fraction form
    600,377.70/900,920.12 = 221,565/x
  3. Step 3: Cross multiply
    600,377.70x = 900,920.12 × 221,565
  4. Step 4: Simplify right side
    600,377.70x = 199,612,366,387.80
  5. Step 5: Solve for x
    x = 199,612,366,387.80/600,377.70
  6. Step 6: Final answer
    x = 332,477.98

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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.