Home / 341,531.40-512,297.10-217,422.60

Finding the Fourth Proportional to 341,531.40, 512,297.10 and 217,422.60

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Solution

The fourth proportional to 341,531.40, 512,297.10 and 217,422.60 is: 326,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,531.40 : 512,297.10 = 217,422.60 : x
  2. Step 2: Convert to fraction form
    341,531.40/512,297.10 = 217,422.60/x
  3. Step 3: Cross multiply
    341,531.40x = 512,297.10 × 217,422.60
  4. Step 4: Simplify right side
    341,531.40x = 111,384,967,454.46
  5. Step 5: Solve for x
    x = 111,384,967,454.46/341,531.40
  6. Step 6: Final answer
    x = 326,133.90

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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.