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Finding the Fourth Proportional to 341,633.70, 512,438.40 and 154,645.20

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Solution

The fourth proportional to 341,633.70, 512,438.40 and 154,645.20 is: 231,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,633.70 : 512,438.40 = 154,645.20 : x
  2. Step 2: Convert to fraction form
    341,633.70/512,438.40 = 154,645.20/x
  3. Step 3: Cross multiply
    341,633.70x = 512,438.40 × 154,645.20
  4. Step 4: Simplify right side
    341,633.70x = 79,246,138,855.68
  5. Step 5: Solve for x
    x = 79,246,138,855.68/341,633.70
  6. Step 6: Final answer
    x = 231,962.30

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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.