Home / 280,681.12-387,511.59-182,657.75

Finding the Fourth Proportional to 280,681.12, 387,511.59 and 182,657.75

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Solution

The fourth proportional to 280,681.12, 387,511.59 and 182,657.75 is: 252,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,681.12 : 387,511.59 = 182,657.75 : x
  2. Step 2: Convert to fraction form
    280,681.12/387,511.59 = 182,657.75/x
  3. Step 3: Cross multiply
    280,681.12x = 387,511.59 × 182,657.75
  4. Step 4: Simplify right side
    280,681.12x = 70,781,996,919.71
  5. Step 5: Solve for x
    x = 70,781,996,919.71/280,681.12
  6. Step 6: Final answer
    x = 252,179.41

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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.