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Finding the Fourth Proportional to 260,699.68, 359,773.14 and 147,520

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Solution

The fourth proportional to 260,699.68, 359,773.14 and 147,520 is: 203,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,699.68 : 359,773.14 = 147,520 : x
  2. Step 2: Convert to fraction form
    260,699.68/359,773.14 = 147,520/x
  3. Step 3: Cross multiply
    260,699.68x = 359,773.14 × 147,520
  4. Step 4: Simplify right side
    260,699.68x = 53,073,733,612.80
  5. Step 5: Solve for x
    x = 53,073,733,612.80/260,699.68
  6. Step 6: Final answer
    x = 203,581.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.