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Finding the Fourth Proportional to 400,317.43, 600,381.82 and 147,460.61

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Solution

The fourth proportional to 400,317.43, 600,381.82 and 147,460.61 is: 221,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,317.43 : 600,381.82 = 147,460.61 : x
  2. Step 2: Convert to fraction form
    400,317.43/600,381.82 = 147,460.61/x
  3. Step 3: Cross multiply
    400,317.43x = 600,381.82 × 147,460.61
  4. Step 4: Simplify right side
    400,317.43x = 88,532,669,410.11
  5. Step 5: Solve for x
    x = 88,532,669,410.11/400,317.43
  6. Step 6: Final answer
    x = 221,156.17

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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.