Home / 211,873.38-292,312.85-121,196.31

Finding the Fourth Proportional to 211,873.38, 292,312.85 and 121,196.31

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Solution

The fourth proportional to 211,873.38, 292,312.85 and 121,196.31 is: 167,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,873.38 : 292,312.85 = 121,196.31 : x
  2. Step 2: Convert to fraction form
    211,873.38/292,312.85 = 121,196.31/x
  3. Step 3: Cross multiply
    211,873.38x = 292,312.85 × 121,196.31
  4. Step 4: Simplify right side
    211,873.38x = 35,427,238,179.60
  5. Step 5: Solve for x
    x = 35,427,238,179.60/211,873.38
  6. Step 6: Final answer
    x = 167,209.48

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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.