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Finding the Fourth Proportional to 250,976.49, 346,248.77 and 143,488.77

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Solution

The fourth proportional to 250,976.49, 346,248.77 and 143,488.77 is: 197,958.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,976.49 : 346,248.77 = 143,488.77 : x
  2. Step 2: Convert to fraction form
    250,976.49/346,248.77 = 143,488.77/x
  3. Step 3: Cross multiply
    250,976.49x = 346,248.77 × 143,488.77
  4. Step 4: Simplify right side
    250,976.49x = 49,682,810,121.31
  5. Step 5: Solve for x
    x = 49,682,810,121.31/250,976.49
  6. Step 6: Final answer
    x = 197,958.02

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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.