Home / 280,030.55-386,471.32-172,597.82

Finding the Fourth Proportional to 280,030.55, 386,471.32 and 172,597.82

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Solution

The fourth proportional to 280,030.55, 386,471.32 and 172,597.82 is: 238,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,030.55 : 386,471.32 = 172,597.82 : x
  2. Step 2: Convert to fraction form
    280,030.55/386,471.32 = 172,597.82/x
  3. Step 3: Cross multiply
    280,030.55x = 386,471.32 × 172,597.82
  4. Step 4: Simplify right side
    280,030.55x = 66,704,105,685.31
  5. Step 5: Solve for x
    x = 66,704,105,685.31/280,030.55
  6. Step 6: Final answer
    x = 238,202.96

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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.