Home / 211,878.72-292,408.32-131,322.08

Finding the Fourth Proportional to 211,878.72, 292,408.32 and 131,322.08

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Solution

The fourth proportional to 211,878.72, 292,408.32 and 131,322.08 is: 181,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,878.72 : 292,408.32 = 131,322.08 : x
  2. Step 2: Convert to fraction form
    211,878.72/292,408.32 = 131,322.08/x
  3. Step 3: Cross multiply
    211,878.72x = 292,408.32 × 131,322.08
  4. Step 4: Simplify right side
    211,878.72x = 38,399,668,791.71
  5. Step 5: Solve for x
    x = 38,399,668,791.71/211,878.72
  6. Step 6: Final answer
    x = 181,234.19

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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.