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Finding the Fourth Proportional to 318,279.96, 439,216.29 and 175,039.56

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Solution

The fourth proportional to 318,279.96, 439,216.29 and 175,039.56 is: 241,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,279.96 : 439,216.29 = 175,039.56 : x
  2. Step 2: Convert to fraction form
    318,279.96/439,216.29 = 175,039.56/x
  3. Step 3: Cross multiply
    318,279.96x = 439,216.29 × 175,039.56
  4. Step 4: Simplify right side
    318,279.96x = 76,880,226,146.43
  5. Step 5: Solve for x
    x = 76,880,226,146.43/318,279.96
  6. Step 6: Final answer
    x = 241,549.06

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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.