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Finding the Fourth Proportional to 249,199.20, 343,882.80 and 136,015.20

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Solution

The fourth proportional to 249,199.20, 343,882.80 and 136,015.20 is: 187,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,199.20 : 343,882.80 = 136,015.20 : x
  2. Step 2: Convert to fraction form
    249,199.20/343,882.80 = 136,015.20/x
  3. Step 3: Cross multiply
    249,199.20x = 343,882.80 × 136,015.20
  4. Step 4: Simplify right side
    249,199.20x = 46,773,287,818.56
  5. Step 5: Solve for x
    x = 46,773,287,818.56/249,199.20
  6. Step 6: Final answer
    x = 187,694.37

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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.