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Finding the Fourth Proportional to 341,286.40, 512,350.80 and 214,926.40

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Solution

The fourth proportional to 341,286.40, 512,350.80 and 214,926.40 is: 322,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,286.40 : 512,350.80 = 214,926.40 : x
  2. Step 2: Convert to fraction form
    341,286.40/512,350.80 = 214,926.40/x
  3. Step 3: Cross multiply
    341,286.40x = 512,350.80 × 214,926.40
  4. Step 4: Simplify right side
    341,286.40x = 110,117,712,981.12
  5. Step 5: Solve for x
    x = 110,117,712,981.12/341,286.40
  6. Step 6: Final answer
    x = 322,654.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.