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Finding the Fourth Proportional to 288,855.40, 433,294.38 and 89,157.96

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Solution

The fourth proportional to 288,855.40, 433,294.38 and 89,157.96 is: 133,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,855.40 : 433,294.38 = 89,157.96 : x
  2. Step 2: Convert to fraction form
    288,855.40/433,294.38 = 89,157.96/x
  3. Step 3: Cross multiply
    288,855.40x = 433,294.38 × 89,157.96
  4. Step 4: Simplify right side
    288,855.40x = 38,631,643,000.26
  5. Step 5: Solve for x
    x = 38,631,643,000.26/288,855.40
  6. Step 6: Final answer
    x = 133,740.42

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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.