Home / 311,279.24-429,604.50-175,338.96

Finding the Fourth Proportional to 311,279.24, 429,604.50 and 175,338.96

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Solution

The fourth proportional to 311,279.24, 429,604.50 and 175,338.96 is: 241,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,279.24 : 429,604.50 = 175,338.96 : x
  2. Step 2: Convert to fraction form
    311,279.24/429,604.50 = 175,338.96/x
  3. Step 3: Cross multiply
    311,279.24x = 429,604.50 × 175,338.96
  4. Step 4: Simplify right side
    311,279.24x = 75,326,406,241.32
  5. Step 5: Solve for x
    x = 75,326,406,241.32/311,279.24
  6. Step 6: Final answer
    x = 241,989.82

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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.