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Finding the Fourth Proportional to 424,154.69, 636,226.44 and 104,309.32

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Solution

The fourth proportional to 424,154.69, 636,226.44 and 104,309.32 is: 156,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,154.69 : 636,226.44 = 104,309.32 : x
  2. Step 2: Convert to fraction form
    424,154.69/636,226.44 = 104,309.32/x
  3. Step 3: Cross multiply
    424,154.69x = 636,226.44 × 104,309.32
  4. Step 4: Simplify right side
    424,154.69x = 66,364,348,616.38
  5. Step 5: Solve for x
    x = 66,364,348,616.38/424,154.69
  6. Step 6: Final answer
    x = 156,462.61

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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.