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Finding the Fourth Proportional to 347,401.20, 521,130.60 and 110,737.20

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Solution

The fourth proportional to 347,401.20, 521,130.60 and 110,737.20 is: 166,114.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,401.20 : 521,130.60 = 110,737.20 : x
  2. Step 2: Convert to fraction form
    347,401.20/521,130.60 = 110,737.20/x
  3. Step 3: Cross multiply
    347,401.20x = 521,130.60 × 110,737.20
  4. Step 4: Simplify right side
    347,401.20x = 57,708,543,478.32
  5. Step 5: Solve for x
    x = 57,708,543,478.32/347,401.20
  6. Step 6: Final answer
    x = 166,114.98

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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.