Home / 330,335.28-455,871.12-187,093.20

Finding the Fourth Proportional to 330,335.28, 455,871.12 and 187,093.20

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Solution

The fourth proportional to 330,335.28, 455,871.12 and 187,093.20 is: 258,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,335.28 : 455,871.12 = 187,093.20 : x
  2. Step 2: Convert to fraction form
    330,335.28/455,871.12 = 187,093.20/x
  3. Step 3: Cross multiply
    330,335.28x = 455,871.12 × 187,093.20
  4. Step 4: Simplify right side
    330,335.28x = 85,290,386,628.38
  5. Step 5: Solve for x
    x = 85,290,386,628.38/330,335.28
  6. Step 6: Final answer
    x = 258,193.39

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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.