Home / 231,219.16-346,856.52-81,428.49

Finding the Fourth Proportional to 231,219.16, 346,856.52 and 81,428.49

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Solution

The fourth proportional to 231,219.16, 346,856.52 and 81,428.49 is: 122,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,219.16 : 346,856.52 = 81,428.49 : x
  2. Step 2: Convert to fraction form
    231,219.16/346,856.52 = 81,428.49/x
  3. Step 3: Cross multiply
    231,219.16x = 346,856.52 × 81,428.49
  4. Step 4: Simplify right side
    231,219.16x = 28,244,002,670.25
  5. Step 5: Solve for x
    x = 28,244,002,670.25/231,219.16
  6. Step 6: Final answer
    x = 122,152.52

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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.