Home / 354,617.20-531,998.70-118,129.60

Finding the Fourth Proportional to 354,617.20, 531,998.70 and 118,129.60

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Solution

The fourth proportional to 354,617.20, 531,998.70 and 118,129.60 is: 177,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,617.20 : 531,998.70 = 118,129.60 : x
  2. Step 2: Convert to fraction form
    354,617.20/531,998.70 = 118,129.60/x
  3. Step 3: Cross multiply
    354,617.20x = 531,998.70 × 118,129.60
  4. Step 4: Simplify right side
    354,617.20x = 62,844,793,631.52
  5. Step 5: Solve for x
    x = 62,844,793,631.52/354,617.20
  6. Step 6: Final answer
    x = 177,218.68

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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.