Home / 280,233.84-386,731.20-159,392.52

Finding the Fourth Proportional to 280,233.84, 386,731.20 and 159,392.52

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Solution

The fourth proportional to 280,233.84, 386,731.20 and 159,392.52 is: 219,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,233.84 : 386,731.20 = 159,392.52 : x
  2. Step 2: Convert to fraction form
    280,233.84/386,731.20 = 159,392.52/x
  3. Step 3: Cross multiply
    280,233.84x = 386,731.20 × 159,392.52
  4. Step 4: Simplify right side
    280,233.84x = 61,642,060,530.62
  5. Step 5: Solve for x
    x = 61,642,060,530.62/280,233.84
  6. Step 6: Final answer
    x = 219,966.51

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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.