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Finding the Fourth Proportional to 424,217.80, 636,312.06 and 108,677.80

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Solution

The fourth proportional to 424,217.80, 636,312.06 and 108,677.80 is: 163,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,217.80 : 636,312.06 = 108,677.80 : x
  2. Step 2: Convert to fraction form
    424,217.80/636,312.06 = 108,677.80/x
  3. Step 3: Cross multiply
    424,217.80x = 636,312.06 × 108,677.80
  4. Step 4: Simplify right side
    424,217.80x = 69,152,994,794.27
  5. Step 5: Solve for x
    x = 69,152,994,794.27/424,217.80
  6. Step 6: Final answer
    x = 163,012.95

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1.5x scale

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.