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Finding the Fourth Proportional to 288,774.82, 433,133.67 and 89,041.30

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Solution

The fourth proportional to 288,774.82, 433,133.67 and 89,041.30 is: 133,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,774.82 : 433,133.67 = 89,041.30 : x
  2. Step 2: Convert to fraction form
    288,774.82/433,133.67 = 89,041.30/x
  3. Step 3: Cross multiply
    288,774.82x = 433,133.67 × 89,041.30
  4. Step 4: Simplify right side
    288,774.82x = 38,566,785,050.57
  5. Step 5: Solve for x
    x = 38,566,785,050.57/288,774.82
  6. Step 6: Final answer
    x = 133,553.14

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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.