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Finding the Fourth Proportional to 425,510.16, 587,201.76 and 231,917.28

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Solution

The fourth proportional to 425,510.16, 587,201.76 and 231,917.28 is: 320,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,510.16 : 587,201.76 = 231,917.28 : x
  2. Step 2: Convert to fraction form
    425,510.16/587,201.76 = 231,917.28/x
  3. Step 3: Cross multiply
    425,510.16x = 587,201.76 × 231,917.28
  4. Step 4: Simplify right side
    425,510.16x = 136,182,234,990.41
  5. Step 5: Solve for x
    x = 136,182,234,990.41/425,510.16
  6. Step 6: Final answer
    x = 320,044.61

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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.