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Finding the Fourth Proportional to 249,395.95, 374,146.47 and 80,903.12

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Solution

The fourth proportional to 249,395.95, 374,146.47 and 80,903.12 is: 121,371.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,395.95 : 374,146.47 = 80,903.12 : x
  2. Step 2: Convert to fraction form
    249,395.95/374,146.47 = 80,903.12/x
  3. Step 3: Cross multiply
    249,395.95x = 374,146.47 × 80,903.12
  4. Step 4: Simplify right side
    249,395.95x = 30,269,616,759.99
  5. Step 5: Solve for x
    x = 30,269,616,759.99/249,395.95
  6. Step 6: Final answer
    x = 121,371.73

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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.