Home / 249,378.45-374,120.28-80,885.69

Finding the Fourth Proportional to 249,378.45, 374,120.28 and 80,885.69

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Solution

The fourth proportional to 249,378.45, 374,120.28 and 80,885.69 is: 121,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,378.45 : 374,120.28 = 80,885.69 : x
  2. Step 2: Convert to fraction form
    249,378.45/374,120.28 = 80,885.69/x
  3. Step 3: Cross multiply
    249,378.45x = 374,120.28 × 80,885.69
  4. Step 4: Simplify right side
    249,378.45x = 30,260,976,687.47
  5. Step 5: Solve for x
    x = 30,260,976,687.47/249,378.45
  6. Step 6: Final answer
    x = 121,345.60

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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.