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Finding the Fourth Proportional to 341,342.20, 512,166.90 and 154,257.40

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Solution

The fourth proportional to 341,342.20, 512,166.90 and 154,257.40 is: 231,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,342.20 : 512,166.90 = 154,257.40 : x
  2. Step 2: Convert to fraction form
    341,342.20/512,166.90 = 154,257.40/x
  3. Step 3: Cross multiply
    341,342.20x = 512,166.90 × 154,257.40
  4. Step 4: Simplify right side
    341,342.20x = 79,005,534,360.06
  5. Step 5: Solve for x
    x = 79,005,534,360.06/341,342.20
  6. Step 6: Final answer
    x = 231,455.51

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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.