Home / 311,221.14-429,490.74-183,896.46

Finding the Fourth Proportional to 311,221.14, 429,490.74 and 183,896.46

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Solution

The fourth proportional to 311,221.14, 429,490.74 and 183,896.46 is: 253,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,221.14 : 429,490.74 = 183,896.46 : x
  2. Step 2: Convert to fraction form
    311,221.14/429,490.74 = 183,896.46/x
  3. Step 3: Cross multiply
    311,221.14x = 429,490.74 × 183,896.46
  4. Step 4: Simplify right side
    311,221.14x = 78,981,826,688.78
  5. Step 5: Solve for x
    x = 78,981,826,688.78/311,221.14
  6. Step 6: Final answer
    x = 253,780.40

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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.