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Finding the Fourth Proportional to 424,875.60, 637,313.40 and 187,966.80

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Solution

The fourth proportional to 424,875.60, 637,313.40 and 187,966.80 is: 281,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,875.60 : 637,313.40 = 187,966.80 : x
  2. Step 2: Convert to fraction form
    424,875.60/637,313.40 = 187,966.80/x
  3. Step 3: Cross multiply
    424,875.60x = 637,313.40 × 187,966.80
  4. Step 4: Simplify right side
    424,875.60x = 119,793,760,395.12
  5. Step 5: Solve for x
    x = 119,793,760,395.12/424,875.60
  6. Step 6: Final answer
    x = 281,950.20

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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.