Home / 211,991.72-292,534.81-121,348.40

Finding the Fourth Proportional to 211,991.72, 292,534.81 and 121,348.40

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Solution

The fourth proportional to 211,991.72, 292,534.81 and 121,348.40 is: 167,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,991.72 : 292,534.81 = 121,348.40 : x
  2. Step 2: Convert to fraction form
    211,991.72/292,534.81 = 121,348.40/x
  3. Step 3: Cross multiply
    211,991.72x = 292,534.81 × 121,348.40
  4. Step 4: Simplify right side
    211,991.72x = 35,498,629,371.76
  5. Step 5: Solve for x
    x = 35,498,629,371.76/211,991.72
  6. Step 6: Final answer
    x = 167,452.91

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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.