Home / 211,765.17-292,372.70-131,278.71

Finding the Fourth Proportional to 211,765.17, 292,372.70 and 131,278.71

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Solution

The fourth proportional to 211,765.17, 292,372.70 and 131,278.71 is: 181,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,765.17 : 292,372.70 = 131,278.71 : x
  2. Step 2: Convert to fraction form
    211,765.17/292,372.70 = 131,278.71/x
  3. Step 3: Cross multiply
    211,765.17x = 292,372.70 × 131,278.71
  4. Step 4: Simplify right side
    211,765.17x = 38,382,310,238.82
  5. Step 5: Solve for x
    x = 38,382,310,238.82/211,765.17
  6. Step 6: Final answer
    x = 181,249.40

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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.