Home / 424,612.12-636,901.77-158,372.21

Finding the Fourth Proportional to 424,612.12, 636,901.77 and 158,372.21

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Solution

The fourth proportional to 424,612.12, 636,901.77 and 158,372.21 is: 237,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,612.12 : 636,901.77 = 158,372.21 : x
  2. Step 2: Convert to fraction form
    424,612.12/636,901.77 = 158,372.21/x
  3. Step 3: Cross multiply
    424,612.12x = 636,901.77 × 158,372.21
  4. Step 4: Simplify right side
    424,612.12x = 100,867,537,683.30
  5. Step 5: Solve for x
    x = 100,867,537,683.30/424,612.12
  6. Step 6: Final answer
    x = 237,552.19

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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.