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Finding the Fourth Proportional to 249,720, 374,580.36 and 101,976

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Solution

The fourth proportional to 249,720, 374,580.36 and 101,976 is: 152,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,720 : 374,580.36 = 101,976 : x
  2. Step 2: Convert to fraction form
    249,720/374,580.36 = 101,976/x
  3. Step 3: Cross multiply
    249,720x = 374,580.36 × 101,976
  4. Step 4: Simplify right side
    249,720x = 38,198,206,791.36
  5. Step 5: Solve for x
    x = 38,198,206,791.36/249,720
  6. Step 6: Final answer
    x = 152,964.15

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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.