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Finding the Fourth Proportional to 283,561.87, 425,331.80 and 70,330.32

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Solution

The fourth proportional to 283,561.87, 425,331.80 and 70,330.32 is: 105,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,561.87 : 425,331.80 = 70,330.32 : x
  2. Step 2: Convert to fraction form
    283,561.87/425,331.80 = 70,330.32/x
  3. Step 3: Cross multiply
    283,561.87x = 425,331.80 × 70,330.32
  4. Step 4: Simplify right side
    283,561.87x = 29,913,721,600.18
  5. Step 5: Solve for x
    x = 29,913,721,600.18/283,561.87
  6. Step 6: Final answer
    x = 105,492.75

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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.