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Finding the Fourth Proportional to 343,449.53, 512,672.68 and 318,122.93

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Solution

The fourth proportional to 343,449.53, 512,672.68 and 318,122.93 is: 474,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,449.53 : 512,672.68 = 318,122.93 : x
  2. Step 2: Convert to fraction form
    343,449.53/512,672.68 = 318,122.93/x
  3. Step 3: Cross multiply
    343,449.53x = 512,672.68 × 318,122.93
  4. Step 4: Simplify right side
    343,449.53x = 163,092,935,092.55
  5. Step 5: Solve for x
    x = 163,092,935,092.55/343,449.53
  6. Step 6: Final answer
    x = 474,867.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.