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Finding the Fourth Proportional to 283,897.46, 425,935.02 and 84,218.90

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Solution

The fourth proportional to 283,897.46, 425,935.02 and 84,218.90 is: 126,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,897.46 : 425,935.02 = 84,218.90 : x
  2. Step 2: Convert to fraction form
    283,897.46/425,935.02 = 84,218.90/x
  3. Step 3: Cross multiply
    283,897.46x = 425,935.02 × 84,218.90
  4. Step 4: Simplify right side
    283,897.46x = 35,871,776,726.20
  5. Step 5: Solve for x
    x = 35,871,776,726.20/283,897.46
  6. Step 6: Final answer
    x = 126,354.70

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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.