Home / 318,678.24-478,059.60-168,995.04

Finding the Fourth Proportional to 318,678.24, 478,059.60 and 168,995.04

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Solution

The fourth proportional to 318,678.24, 478,059.60 and 168,995.04 is: 253,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,678.24 : 478,059.60 = 168,995.04 : x
  2. Step 2: Convert to fraction form
    318,678.24/478,059.60 = 168,995.04/x
  3. Step 3: Cross multiply
    318,678.24x = 478,059.60 × 168,995.04
  4. Step 4: Simplify right side
    318,678.24x = 80,789,701,224.38
  5. Step 5: Solve for x
    x = 80,789,701,224.38/318,678.24
  6. Step 6: Final answer
    x = 253,514.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.