Home / 318,869.30-440,042.61-175,629.86

Finding the Fourth Proportional to 318,869.30, 440,042.61 and 175,629.86

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Solution

The fourth proportional to 318,869.30, 440,042.61 and 175,629.86 is: 242,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,869.30 : 440,042.61 = 175,629.86 : x
  2. Step 2: Convert to fraction form
    318,869.30/440,042.61 = 175,629.86/x
  3. Step 3: Cross multiply
    318,869.30x = 440,042.61 × 175,629.86
  4. Step 4: Simplify right side
    318,869.30x = 77,284,621,988.33
  5. Step 5: Solve for x
    x = 77,284,621,988.33/318,869.30
  6. Step 6: Final answer
    x = 242,370.85

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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.