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Finding the Fourth Proportional to 249,680.60, 374,484 and 91,872.32

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Solution

The fourth proportional to 249,680.60, 374,484 and 91,872.32 is: 137,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,680.60 : 374,484 = 91,872.32 : x
  2. Step 2: Convert to fraction form
    249,680.60/374,484 = 91,872.32/x
  3. Step 3: Cross multiply
    249,680.60x = 374,484 × 91,872.32
  4. Step 4: Simplify right side
    249,680.60x = 34,404,713,882.88
  5. Step 5: Solve for x
    x = 34,404,713,882.88/249,680.60
  6. Step 6: Final answer
    x = 137,794.90

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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.