Home / 211,275.68-291,567.20-115,788.20

Finding the Fourth Proportional to 211,275.68, 291,567.20 and 115,788.20

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Solution

The fourth proportional to 211,275.68, 291,567.20 and 115,788.20 is: 159,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,275.68 : 291,567.20 = 115,788.20 : x
  2. Step 2: Convert to fraction form
    211,275.68/291,567.20 = 115,788.20/x
  3. Step 3: Cross multiply
    211,275.68x = 291,567.20 × 115,788.20
  4. Step 4: Simplify right side
    211,275.68x = 33,760,041,267.04
  5. Step 5: Solve for x
    x = 33,760,041,267.04/211,275.68
  6. Step 6: Final answer
    x = 159,791.42

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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.