Home / 318,748.38-439,883.67-175,518.30

Finding the Fourth Proportional to 318,748.38, 439,883.67 and 175,518.30

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Solution

The fourth proportional to 318,748.38, 439,883.67 and 175,518.30 is: 242,221.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,748.38 : 439,883.67 = 175,518.30 : x
  2. Step 2: Convert to fraction form
    318,748.38/439,883.67 = 175,518.30/x
  3. Step 3: Cross multiply
    318,748.38x = 439,883.67 × 175,518.30
  4. Step 4: Simplify right side
    318,748.38x = 77,207,633,956.16
  5. Step 5: Solve for x
    x = 77,207,633,956.16/318,748.38
  6. Step 6: Final answer
    x = 242,221.26

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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.