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Finding the Fourth Proportional to 318,882.26, 440,057.48 and 175,642.30

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Solution

The fourth proportional to 318,882.26, 440,057.48 and 175,642.30 is: 242,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,882.26 : 440,057.48 = 175,642.30 : x
  2. Step 2: Convert to fraction form
    318,882.26/440,057.48 = 175,642.30/x
  3. Step 3: Cross multiply
    318,882.26x = 440,057.48 × 175,642.30
  4. Step 4: Simplify right side
    318,882.26x = 77,292,705,115.94
  5. Step 5: Solve for x
    x = 77,292,705,115.94/318,882.26
  6. Step 6: Final answer
    x = 242,386.35

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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.