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Finding the Fourth Proportional to 342,311.13, 472,353.01 and 189,325.01

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Solution

The fourth proportional to 342,311.13, 472,353.01 and 189,325.01 is: 261,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,311.13 : 472,353.01 = 189,325.01 : x
  2. Step 2: Convert to fraction form
    342,311.13/472,353.01 = 189,325.01/x
  3. Step 3: Cross multiply
    342,311.13x = 472,353.01 × 189,325.01
  4. Step 4: Simplify right side
    342,311.13x = 89,428,239,049.35
  5. Step 5: Solve for x
    x = 89,428,239,049.35/342,311.13
  6. Step 6: Final answer
    x = 261,248.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.