Home / 385,318.80-577,834.76-132,528.32

Finding the Fourth Proportional to 385,318.80, 577,834.76 and 132,528.32

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Solution

The fourth proportional to 385,318.80, 577,834.76 and 132,528.32 is: 198,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,318.80 : 577,834.76 = 132,528.32 : x
  2. Step 2: Convert to fraction form
    385,318.80/577,834.76 = 132,528.32/x
  3. Step 3: Cross multiply
    385,318.80x = 577,834.76 × 132,528.32
  4. Step 4: Simplify right side
    385,318.80x = 76,579,469,980.40
  5. Step 5: Solve for x
    x = 76,579,469,980.40/385,318.80
  6. Step 6: Final answer
    x = 198,743.14

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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.