Home / 381,730.70-526,836.75-230,910.86

Finding the Fourth Proportional to 381,730.70, 526,836.75 and 230,910.86

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Solution

The fourth proportional to 381,730.70, 526,836.75 and 230,910.86 is: 318,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,730.70 : 526,836.75 = 230,910.86 : x
  2. Step 2: Convert to fraction form
    381,730.70/526,836.75 = 230,910.86/x
  3. Step 3: Cross multiply
    381,730.70x = 526,836.75 × 230,910.86
  4. Step 4: Simplify right side
    381,730.70x = 121,652,327,022.11
  5. Step 5: Solve for x
    x = 121,652,327,022.11/381,730.70
  6. Step 6: Final answer
    x = 318,686.25

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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.