Home / 311,426.32-429,768.34-168,186.38

Finding the Fourth Proportional to 311,426.32, 429,768.34 and 168,186.38

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Solution

The fourth proportional to 311,426.32, 429,768.34 and 168,186.38 is: 232,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,426.32 : 429,768.34 = 168,186.38 : x
  2. Step 2: Convert to fraction form
    311,426.32/429,768.34 = 168,186.38/x
  3. Step 3: Cross multiply
    311,426.32x = 429,768.34 × 168,186.38
  4. Step 4: Simplify right side
    311,426.32x = 72,281,181,343.21
  5. Step 5: Solve for x
    x = 72,281,181,343.21/311,426.32
  6. Step 6: Final answer
    x = 232,097.21

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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.