Home / 210,868.80-291,001.05-115,379.52

Finding the Fourth Proportional to 210,868.80, 291,001.05 and 115,379.52

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Solution

The fourth proportional to 210,868.80, 291,001.05 and 115,379.52 is: 159,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,868.80 : 291,001.05 = 115,379.52 : x
  2. Step 2: Convert to fraction form
    210,868.80/291,001.05 = 115,379.52/x
  3. Step 3: Cross multiply
    210,868.80x = 291,001.05 × 115,379.52
  4. Step 4: Simplify right side
    210,868.80x = 33,575,561,468.50
  5. Step 5: Solve for x
    x = 33,575,561,468.50/210,868.80
  6. Step 6: Final answer
    x = 159,224.89

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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.