Home / 311,426.96-429,769.20-168,187.04

Finding the Fourth Proportional to 311,426.96, 429,769.20 and 168,187.04

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Solution

The fourth proportional to 311,426.96, 429,769.20 and 168,187.04 is: 232,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,426.96 : 429,769.20 = 168,187.04 : x
  2. Step 2: Convert to fraction form
    311,426.96/429,769.20 = 168,187.04/x
  3. Step 3: Cross multiply
    311,426.96x = 429,769.20 × 168,187.04
  4. Step 4: Simplify right side
    311,426.96x = 72,281,609,631.17
  5. Step 5: Solve for x
    x = 72,281,609,631.17/311,426.96
  6. Step 6: Final answer
    x = 232,098.11

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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.