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Finding the Fourth Proportional to 424,812.80, 636,182.40 and 202,937.60

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Solution

The fourth proportional to 424,812.80, 636,182.40 and 202,937.60 is: 303,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,812.80 : 636,182.40 = 202,937.60 : x
  2. Step 2: Convert to fraction form
    424,812.80/636,182.40 = 202,937.60/x
  3. Step 3: Cross multiply
    424,812.80x = 636,182.40 × 202,937.60
  4. Step 4: Simplify right side
    424,812.80x = 129,105,329,418.24
  5. Step 5: Solve for x
    x = 129,105,329,418.24/424,812.80
  6. Step 6: Final answer
    x = 303,911.11

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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.