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Finding the Fourth Proportional to 249,408.80, 374,147.06 and 80,874.16

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Solution

The fourth proportional to 249,408.80, 374,147.06 and 80,874.16 is: 121,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,408.80 : 374,147.06 = 80,874.16 : x
  2. Step 2: Convert to fraction form
    249,408.80/374,147.06 = 80,874.16/x
  3. Step 3: Cross multiply
    249,408.80x = 374,147.06 × 80,874.16
  4. Step 4: Simplify right side
    249,408.80x = 30,258,829,193.97
  5. Step 5: Solve for x
    x = 30,258,829,193.97/249,408.80
  6. Step 6: Final answer
    x = 121,322.22

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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.