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Finding the Fourth Proportional to 289,240.32, 432,202.32 and 220,471.32

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Solution

The fourth proportional to 289,240.32, 432,202.32 and 220,471.32 is: 329,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,240.32 : 432,202.32 = 220,471.32 : x
  2. Step 2: Convert to fraction form
    289,240.32/432,202.32 = 220,471.32/x
  3. Step 3: Cross multiply
    289,240.32x = 432,202.32 × 220,471.32
  4. Step 4: Simplify right side
    289,240.32x = 95,288,215,997.46
  5. Step 5: Solve for x
    x = 95,288,215,997.46/289,240.32
  6. Step 6: Final answer
    x = 329,443.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.