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Finding the Fourth Proportional to 311,252.40, 429,522.66 and 175,285.80

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Solution

The fourth proportional to 311,252.40, 429,522.66 and 175,285.80 is: 241,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,252.40 : 429,522.66 = 175,285.80 : x
  2. Step 2: Convert to fraction form
    311,252.40/429,522.66 = 175,285.80/x
  3. Step 3: Cross multiply
    311,252.40x = 429,522.66 × 175,285.80
  4. Step 4: Simplify right side
    311,252.40x = 75,289,223,076.23
  5. Step 5: Solve for x
    x = 75,289,223,076.23/311,252.40
  6. Step 6: Final answer
    x = 241,891.22

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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.