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Finding the Fourth Proportional to 424,745.80, 586,160.99 and 231,155.30

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Solution

The fourth proportional to 424,745.80, 586,160.99 and 231,155.30 is: 319,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,745.80 : 586,160.99 = 231,155.30 : x
  2. Step 2: Convert to fraction form
    424,745.80/586,160.99 = 231,155.30/x
  3. Step 3: Cross multiply
    424,745.80x = 586,160.99 × 231,155.30
  4. Step 4: Simplify right side
    424,745.80x = 135,494,219,491.75
  5. Step 5: Solve for x
    x = 135,494,219,491.75/424,745.80
  6. Step 6: Final answer
    x = 319,000.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.