Home / 311,515.24-429,890.62-168,275.24

Finding the Fourth Proportional to 311,515.24, 429,890.62 and 168,275.24

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Solution

The fourth proportional to 311,515.24, 429,890.62 and 168,275.24 is: 232,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,515.24 : 429,890.62 = 168,275.24 : x
  2. Step 2: Convert to fraction form
    311,515.24/429,890.62 = 168,275.24/x
  3. Step 3: Cross multiply
    311,515.24x = 429,890.62 × 168,275.24
  4. Step 4: Simplify right side
    311,515.24x = 72,339,947,254.25
  5. Step 5: Solve for x
    x = 72,339,947,254.25/311,515.24
  6. Step 6: Final answer
    x = 232,219.61

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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.