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Finding the Fourth Proportional to 424,474.59, 636,790.64 and 140,184.84

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Solution

The fourth proportional to 424,474.59, 636,790.64 and 140,184.84 is: 210,303.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,474.59 : 636,790.64 = 140,184.84 : x
  2. Step 2: Convert to fraction form
    424,474.59/636,790.64 = 140,184.84/x
  3. Step 3: Cross multiply
    424,474.59x = 636,790.64 × 140,184.84
  4. Step 4: Simplify right side
    424,474.59x = 89,268,393,280.97
  5. Step 5: Solve for x
    x = 89,268,393,280.97/424,474.59
  6. Step 6: Final answer
    x = 210,303.27

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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.