Home / 311,405.19-429,650.26-175,391.61

Finding the Fourth Proportional to 311,405.19, 429,650.26 and 175,391.61

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Solution

The fourth proportional to 311,405.19, 429,650.26 and 175,391.61 is: 241,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,405.19 : 429,650.26 = 175,391.61 : x
  2. Step 2: Convert to fraction form
    311,405.19/429,650.26 = 175,391.61/x
  3. Step 3: Cross multiply
    311,405.19x = 429,650.26 × 175,391.61
  4. Step 4: Simplify right side
    311,405.19x = 75,357,050,838.32
  5. Step 5: Solve for x
    x = 75,357,050,838.32/311,405.19
  6. Step 6: Final answer
    x = 241,990.35

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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.