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Finding the Fourth Proportional to 383,616.60, 575,424.90 and 231,401.40

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Solution

The fourth proportional to 383,616.60, 575,424.90 and 231,401.40 is: 347,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,616.60 : 575,424.90 = 231,401.40 : x
  2. Step 2: Convert to fraction form
    383,616.60/575,424.90 = 231,401.40/x
  3. Step 3: Cross multiply
    383,616.60x = 575,424.90 × 231,401.40
  4. Step 4: Simplify right side
    383,616.60x = 133,154,127,454.86
  5. Step 5: Solve for x
    x = 133,154,127,454.86/383,616.60
  6. Step 6: Final answer
    x = 347,102.10

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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.