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Finding the Fourth Proportional to 424,649.76, 636,974.68 and 109,106.68

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Solution

The fourth proportional to 424,649.76, 636,974.68 and 109,106.68 is: 163,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,649.76 : 636,974.68 = 109,106.68 : x
  2. Step 2: Convert to fraction form
    424,649.76/636,974.68 = 109,106.68/x
  3. Step 3: Cross multiply
    424,649.76x = 636,974.68 × 109,106.68
  4. Step 4: Simplify right side
    424,649.76x = 69,498,192,578.86
  5. Step 5: Solve for x
    x = 69,498,192,578.86/424,649.76
  6. Step 6: Final answer
    x = 163,660.03

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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.