Home / 211,036.43-291,230.28-115,543.13

Finding the Fourth Proportional to 211,036.43, 291,230.28 and 115,543.13

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Solution

The fourth proportional to 211,036.43, 291,230.28 and 115,543.13 is: 159,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,036.43 : 291,230.28 = 115,543.13 : x
  2. Step 2: Convert to fraction form
    211,036.43/291,230.28 = 115,543.13/x
  3. Step 3: Cross multiply
    211,036.43x = 291,230.28 × 115,543.13
  4. Step 4: Simplify right side
    211,036.43x = 33,649,656,645.83
  5. Step 5: Solve for x
    x = 33,649,656,645.83/211,036.43
  6. Step 6: Final answer
    x = 159,449.51

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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.