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Finding the Fourth Proportional to 318,663, 439,784.22 and 175,452.12

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Solution

The fourth proportional to 318,663, 439,784.22 and 175,452.12 is: 242,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,663 : 439,784.22 = 175,452.12 : x
  2. Step 2: Convert to fraction form
    318,663/439,784.22 = 175,452.12/x
  3. Step 3: Cross multiply
    318,663x = 439,784.22 × 175,452.12
  4. Step 4: Simplify right side
    318,663x = 77,161,073,741.55
  5. Step 5: Solve for x
    x = 77,161,073,741.55/318,663
  6. Step 6: Final answer
    x = 242,140.05

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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.