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Finding the Fourth Proportional to 180,812.88, 249,536.46 and 100,265.64

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Solution

The fourth proportional to 180,812.88, 249,536.46 and 100,265.64 is: 138,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,812.88 : 249,536.46 = 100,265.64 : x
  2. Step 2: Convert to fraction form
    180,812.88/249,536.46 = 100,265.64/x
  3. Step 3: Cross multiply
    180,812.88x = 249,536.46 × 100,265.64
  4. Step 4: Simplify right side
    180,812.88x = 25,019,932,865.23
  5. Step 5: Solve for x
    x = 25,019,932,865.23/180,812.88
  6. Step 6: Final answer
    x = 138,374.73

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1.5x scale

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.