Home / 257,070.20-385,605.30-162,591.80

Finding the Fourth Proportional to 257,070.20, 385,605.30 and 162,591.80

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Solution

The fourth proportional to 257,070.20, 385,605.30 and 162,591.80 is: 243,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,070.20 : 385,605.30 = 162,591.80 : x
  2. Step 2: Convert to fraction form
    257,070.20/385,605.30 = 162,591.80/x
  3. Step 3: Cross multiply
    257,070.20x = 385,605.30 × 162,591.80
  4. Step 4: Simplify right side
    257,070.20x = 62,696,259,816.54
  5. Step 5: Solve for x
    x = 62,696,259,816.54/257,070.20
  6. Step 6: Final answer
    x = 243,887.70

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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.