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Finding the Fourth Proportional to 249,609.60, 374,414.40 and 72,122.40

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Solution

The fourth proportional to 249,609.60, 374,414.40 and 72,122.40 is: 108,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,609.60 : 374,414.40 = 72,122.40 : x
  2. Step 2: Convert to fraction form
    249,609.60/374,414.40 = 72,122.40/x
  3. Step 3: Cross multiply
    249,609.60x = 374,414.40 × 72,122.40
  4. Step 4: Simplify right side
    249,609.60x = 27,003,665,122.56
  5. Step 5: Solve for x
    x = 27,003,665,122.56/249,609.60
  6. Step 6: Final answer
    x = 108,183.60

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1.5x scale

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.