Home / 311,910.72-430,462.32-175,937.76

Finding the Fourth Proportional to 311,910.72, 430,462.32 and 175,937.76

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Solution

The fourth proportional to 311,910.72, 430,462.32 and 175,937.76 is: 242,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,910.72 : 430,462.32 = 175,937.76 : x
  2. Step 2: Convert to fraction form
    311,910.72/430,462.32 = 175,937.76/x
  3. Step 3: Cross multiply
    311,910.72x = 430,462.32 × 175,937.76
  4. Step 4: Simplify right side
    311,910.72x = 75,734,576,345.20
  5. Step 5: Solve for x
    x = 75,734,576,345.20/311,910.72
  6. Step 6: Final answer
    x = 242,808.51

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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.