Home / 311,743.20-430,207.58-168,502.89

Finding the Fourth Proportional to 311,743.20, 430,207.58 and 168,502.89

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Solution

The fourth proportional to 311,743.20, 430,207.58 and 168,502.89 is: 232,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,743.20 : 430,207.58 = 168,502.89 : x
  2. Step 2: Convert to fraction form
    311,743.20/430,207.58 = 168,502.89/x
  3. Step 3: Cross multiply
    311,743.20x = 430,207.58 × 168,502.89
  4. Step 4: Simplify right side
    311,743.20x = 72,491,220,529.91
  5. Step 5: Solve for x
    x = 72,491,220,529.91/311,743.20
  6. Step 6: Final answer
    x = 232,535.05

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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.