Home / 229,479.20-316,671-127,511.80

Finding the Fourth Proportional to 229,479.20, 316,671 and 127,511.80

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Solution

The fourth proportional to 229,479.20, 316,671 and 127,511.80 is: 175,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,479.20 : 316,671 = 127,511.80 : x
  2. Step 2: Convert to fraction form
    229,479.20/316,671 = 127,511.80/x
  3. Step 3: Cross multiply
    229,479.20x = 316,671 × 127,511.80
  4. Step 4: Simplify right side
    229,479.20x = 40,379,289,217.80
  5. Step 5: Solve for x
    x = 40,379,289,217.80/229,479.20
  6. Step 6: Final answer
    x = 175,960.56

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1.5x scale

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.