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Finding the Fourth Proportional to 329,027.70, 493,614.45 and 258,168.90

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Solution

The fourth proportional to 329,027.70, 493,614.45 and 258,168.90 is: 387,310.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,027.70 : 493,614.45 = 258,168.90 : x
  2. Step 2: Convert to fraction form
    329,027.70/493,614.45 = 258,168.90/x
  3. Step 3: Cross multiply
    329,027.70x = 493,614.45 × 258,168.90
  4. Step 4: Simplify right side
    329,027.70x = 127,435,899,580.61
  5. Step 5: Solve for x
    x = 127,435,899,580.61/329,027.70
  6. Step 6: Final answer
    x = 387,310.55

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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.