Home / 211,036.19-291,218.40-115,524.41

Finding the Fourth Proportional to 211,036.19, 291,218.40 and 115,524.41

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Solution

The fourth proportional to 211,036.19, 291,218.40 and 115,524.41 is: 159,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,036.19 : 291,218.40 = 115,524.41 : x
  2. Step 2: Convert to fraction form
    211,036.19/291,218.40 = 115,524.41/x
  3. Step 3: Cross multiply
    211,036.19x = 291,218.40 × 115,524.41
  4. Step 4: Simplify right side
    211,036.19x = 33,642,832,385.05
  5. Step 5: Solve for x
    x = 33,642,832,385.05/211,036.19
  6. Step 6: Final answer
    x = 159,417.36

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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.