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Finding the Fourth Proportional to 288,937.32, 433,578.24 and 129,000.84

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Solution

The fourth proportional to 288,937.32, 433,578.24 and 129,000.84 is: 193,578.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,937.32 : 433,578.24 = 129,000.84 : x
  2. Step 2: Convert to fraction form
    288,937.32/433,578.24 = 129,000.84/x
  3. Step 3: Cross multiply
    288,937.32x = 433,578.24 × 129,000.84
  4. Step 4: Simplify right side
    288,937.32x = 55,931,957,165.72
  5. Step 5: Solve for x
    x = 55,931,957,165.72/288,937.32
  6. Step 6: Final answer
    x = 193,578.17

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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.