Home / 271,823.52-407,555.28-129,690.72

Finding the Fourth Proportional to 271,823.52, 407,555.28 and 129,690.72

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Solution

The fourth proportional to 271,823.52, 407,555.28 and 129,690.72 is: 194,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,823.52 : 407,555.28 = 129,690.72 : x
  2. Step 2: Convert to fraction form
    271,823.52/407,555.28 = 129,690.72/x
  3. Step 3: Cross multiply
    271,823.52x = 407,555.28 × 129,690.72
  4. Step 4: Simplify right side
    271,823.52x = 52,856,137,703.00
  5. Step 5: Solve for x
    x = 52,856,137,703.00/271,823.52
  6. Step 6: Final answer
    x = 194,450.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.