Home / 330,219.27-455,702.85-186,979.53

Finding the Fourth Proportional to 330,219.27, 455,702.85 and 186,979.53

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Solution

The fourth proportional to 330,219.27, 455,702.85 and 186,979.53 is: 258,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,219.27 : 455,702.85 = 186,979.53 : x
  2. Step 2: Convert to fraction form
    330,219.27/455,702.85 = 186,979.53/x
  3. Step 3: Cross multiply
    330,219.27x = 455,702.85 × 186,979.53
  4. Step 4: Simplify right side
    330,219.27x = 85,207,104,712.66
  5. Step 5: Solve for x
    x = 85,207,104,712.66/330,219.27
  6. Step 6: Final answer
    x = 258,031.90

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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.