Home / 443,343.20-611,828.18-242,139.20

Finding the Fourth Proportional to 443,343.20, 611,828.18 and 242,139.20

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Solution

The fourth proportional to 443,343.20, 611,828.18 and 242,139.20 is: 334,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,343.20 : 611,828.18 = 242,139.20 : x
  2. Step 2: Convert to fraction form
    443,343.20/611,828.18 = 242,139.20/x
  3. Step 3: Cross multiply
    443,343.20x = 611,828.18 × 242,139.20
  4. Step 4: Simplify right side
    443,343.20x = 148,147,581,772.82
  5. Step 5: Solve for x
    x = 148,147,581,772.82/443,343.20
  6. Step 6: Final answer
    x = 334,160.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.