Home / 280,519.20-386,716.28-173,017.22

Finding the Fourth Proportional to 280,519.20, 386,716.28 and 173,017.22

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Solution

The fourth proportional to 280,519.20, 386,716.28 and 173,017.22 is: 238,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,519.20 : 386,716.28 = 173,017.22 : x
  2. Step 2: Convert to fraction form
    280,519.20/386,716.28 = 173,017.22/x
  3. Step 3: Cross multiply
    280,519.20x = 386,716.28 × 173,017.22
  4. Step 4: Simplify right side
    280,519.20x = 66,908,572,895.67
  5. Step 5: Solve for x
    x = 66,908,572,895.67/280,519.20
  6. Step 6: Final answer
    x = 238,516.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.