Home / 257,389.28-385,657.20-182,136.56

Finding the Fourth Proportional to 257,389.28, 385,657.20 and 182,136.56

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Solution

The fourth proportional to 257,389.28, 385,657.20 and 182,136.56 is: 272,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,389.28 : 385,657.20 = 182,136.56 : x
  2. Step 2: Convert to fraction form
    257,389.28/385,657.20 = 182,136.56/x
  3. Step 3: Cross multiply
    257,389.28x = 385,657.20 × 182,136.56
  4. Step 4: Simplify right side
    257,389.28x = 70,242,275,747.23
  5. Step 5: Solve for x
    x = 70,242,275,747.23/257,389.28
  6. Step 6: Final answer
    x = 272,902.88

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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.