Home / 283,126.29-390,731.13-162,275.36

Finding the Fourth Proportional to 283,126.29, 390,731.13 and 162,275.36

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Solution

The fourth proportional to 283,126.29, 390,731.13 and 162,275.36 is: 223,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,126.29 : 390,731.13 = 162,275.36 : x
  2. Step 2: Convert to fraction form
    283,126.29/390,731.13 = 162,275.36/x
  3. Step 3: Cross multiply
    283,126.29x = 390,731.13 × 162,275.36
  4. Step 4: Simplify right side
    283,126.29x = 63,406,032,830.30
  5. Step 5: Solve for x
    x = 63,406,032,830.30/283,126.29
  6. Step 6: Final answer
    x = 223,949.65

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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.