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Finding the Fourth Proportional to 347,273.20, 520,909.80 and 110,639.80

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Solution

The fourth proportional to 347,273.20, 520,909.80 and 110,639.80 is: 165,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,273.20 : 520,909.80 = 110,639.80 : x
  2. Step 2: Convert to fraction form
    347,273.20/520,909.80 = 110,639.80/x
  3. Step 3: Cross multiply
    347,273.20x = 520,909.80 × 110,639.80
  4. Step 4: Simplify right side
    347,273.20x = 57,633,356,090.04
  5. Step 5: Solve for x
    x = 57,633,356,090.04/347,273.20
  6. Step 6: Final answer
    x = 165,959.70

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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.