Home / 249,744.20-374,616.30-81,280.40

Finding the Fourth Proportional to 249,744.20, 374,616.30 and 81,280.40

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Solution

The fourth proportional to 249,744.20, 374,616.30 and 81,280.40 is: 121,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,744.20 : 374,616.30 = 81,280.40 : x
  2. Step 2: Convert to fraction form
    249,744.20/374,616.30 = 81,280.40/x
  3. Step 3: Cross multiply
    249,744.20x = 374,616.30 × 81,280.40
  4. Step 4: Simplify right side
    249,744.20x = 30,448,962,710.52
  5. Step 5: Solve for x
    x = 30,448,962,710.52/249,744.20
  6. Step 6: Final answer
    x = 121,920.60

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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.