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Finding the Fourth Proportional to 341,342.40, 512,434.80 and 214,982.40

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Solution

The fourth proportional to 341,342.40, 512,434.80 and 214,982.40 is: 322,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,342.40 : 512,434.80 = 214,982.40 : x
  2. Step 2: Convert to fraction form
    341,342.40/512,434.80 = 214,982.40/x
  3. Step 3: Cross multiply
    341,342.40x = 512,434.80 × 214,982.40
  4. Step 4: Simplify right side
    341,342.40x = 110,164,463,147.52
  5. Step 5: Solve for x
    x = 110,164,463,147.52/341,342.40
  6. Step 6: Final answer
    x = 322,738.88

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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.