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Finding the Fourth Proportional to 311,504.52, 429,876.20 and 168,264.60

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Solution

The fourth proportional to 311,504.52, 429,876.20 and 168,264.60 is: 232,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,504.52 : 429,876.20 = 168,264.60 : x
  2. Step 2: Convert to fraction form
    311,504.52/429,876.20 = 168,264.60/x
  3. Step 3: Cross multiply
    311,504.52x = 429,876.20 × 168,264.60
  4. Step 4: Simplify right side
    311,504.52x = 72,332,946,842.52
  5. Step 5: Solve for x
    x = 72,332,946,842.52/311,504.52
  6. Step 6: Final answer
    x = 232,205.13

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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.