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Finding the Fourth Proportional to 331,401.60, 497,102.40 and 154,254.60

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Solution

The fourth proportional to 331,401.60, 497,102.40 and 154,254.60 is: 231,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,401.60 : 497,102.40 = 154,254.60 : x
  2. Step 2: Convert to fraction form
    331,401.60/497,102.40 = 154,254.60/x
  3. Step 3: Cross multiply
    331,401.60x = 497,102.40 × 154,254.60
  4. Step 4: Simplify right side
    331,401.60x = 76,680,331,871.04
  5. Step 5: Solve for x
    x = 76,680,331,871.04/331,401.60
  6. Step 6: Final answer
    x = 231,381.90

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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.