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Finding the Fourth Proportional to 260,196.60, 390,035.70 and 119,710.20

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Solution

The fourth proportional to 260,196.60, 390,035.70 and 119,710.20 is: 179,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,196.60 : 390,035.70 = 119,710.20 : x
  2. Step 2: Convert to fraction form
    260,196.60/390,035.70 = 119,710.20/x
  3. Step 3: Cross multiply
    260,196.60x = 390,035.70 × 119,710.20
  4. Step 4: Simplify right side
    260,196.60x = 46,691,251,654.14
  5. Step 5: Solve for x
    x = 46,691,251,654.14/260,196.60
  6. Step 6: Final answer
    x = 179,446.05

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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.