Home / 472,072.20-651,464.42-257,215.85

Finding the Fourth Proportional to 472,072.20, 651,464.42 and 257,215.85

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Solution

The fourth proportional to 472,072.20, 651,464.42 and 257,215.85 is: 354,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,072.20 : 651,464.42 = 257,215.85 : x
  2. Step 2: Convert to fraction form
    472,072.20/651,464.42 = 257,215.85/x
  3. Step 3: Cross multiply
    472,072.20x = 651,464.42 × 257,215.85
  4. Step 4: Simplify right side
    472,072.20x = 167,566,977,545.97
  5. Step 5: Solve for x
    x = 167,566,977,545.97/472,072.20
  6. Step 6: Final answer
    x = 354,960.48

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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.