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Finding the Fourth Proportional to 338,521.68, 508,113 and 161,151.12

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Solution

The fourth proportional to 338,521.68, 508,113 and 161,151.12 is: 241,884.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,521.68 : 508,113 = 161,151.12 : x
  2. Step 2: Convert to fraction form
    338,521.68/508,113 = 161,151.12/x
  3. Step 3: Cross multiply
    338,521.68x = 508,113 × 161,151.12
  4. Step 4: Simplify right side
    338,521.68x = 81,882,979,036.56
  5. Step 5: Solve for x
    x = 81,882,979,036.56/338,521.68
  6. Step 6: Final answer
    x = 241,884.00

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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.