Home / 211,051.40-291,250.86-115,558.04

Finding the Fourth Proportional to 211,051.40, 291,250.86 and 115,558.04

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Solution

The fourth proportional to 211,051.40, 291,250.86 and 115,558.04 is: 159,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,051.40 : 291,250.86 = 115,558.04 : x
  2. Step 2: Convert to fraction form
    211,051.40/291,250.86 = 115,558.04/x
  3. Step 3: Cross multiply
    211,051.40x = 291,250.86 × 115,558.04
  4. Step 4: Simplify right side
    211,051.40x = 33,656,378,529.91
  5. Step 5: Solve for x
    x = 33,656,378,529.91/211,051.40
  6. Step 6: Final answer
    x = 159,470.06

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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.