Home / 393,122.03-542,337.66-249,805.22

Finding the Fourth Proportional to 393,122.03, 542,337.66 and 249,805.22

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Solution

The fourth proportional to 393,122.03, 542,337.66 and 249,805.22 is: 344,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,122.03 : 542,337.66 = 249,805.22 : x
  2. Step 2: Convert to fraction form
    393,122.03/542,337.66 = 249,805.22/x
  3. Step 3: Cross multiply
    393,122.03x = 542,337.66 × 249,805.22
  4. Step 4: Simplify right side
    393,122.03x = 135,478,775,758.90
  5. Step 5: Solve for x
    x = 135,478,775,758.90/393,122.03
  6. Step 6: Final answer
    x = 344,622.71

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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.