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Finding the Fourth Proportional to 245,332.26, 338,508.92 and 143,338.01

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Solution

The fourth proportional to 245,332.26, 338,508.92 and 143,338.01 is: 197,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,332.26 : 338,508.92 = 143,338.01 : x
  2. Step 2: Convert to fraction form
    245,332.26/338,508.92 = 143,338.01/x
  3. Step 3: Cross multiply
    245,332.26x = 338,508.92 × 143,338.01
  4. Step 4: Simplify right side
    245,332.26x = 48,521,193,625.85
  5. Step 5: Solve for x
    x = 48,521,193,625.85/245,332.26
  6. Step 6: Final answer
    x = 197,777.47

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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.