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Finding the Fourth Proportional to 249,990.60, 344,984.22 and 136,812

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Solution

The fourth proportional to 249,990.60, 344,984.22 and 136,812 is: 188,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,990.60 : 344,984.22 = 136,812 : x
  2. Step 2: Convert to fraction form
    249,990.60/344,984.22 = 136,812/x
  3. Step 3: Cross multiply
    249,990.60x = 344,984.22 × 136,812
  4. Step 4: Simplify right side
    249,990.60x = 47,197,981,106.64
  5. Step 5: Solve for x
    x = 47,197,981,106.64/249,990.60
  6. Step 6: Final answer
    x = 188,799.02

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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.