Home / 210,405.09-290,360.88-119,766.89

Finding the Fourth Proportional to 210,405.09, 290,360.88 and 119,766.89

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Solution

The fourth proportional to 210,405.09, 290,360.88 and 119,766.89 is: 165,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,405.09 : 290,360.88 = 119,766.89 : x
  2. Step 2: Convert to fraction form
    210,405.09/290,360.88 = 119,766.89/x
  3. Step 3: Cross multiply
    210,405.09x = 290,360.88 × 119,766.89
  4. Step 4: Simplify right side
    210,405.09x = 34,775,619,938.21
  5. Step 5: Solve for x
    x = 34,775,619,938.21/210,405.09
  6. Step 6: Final answer
    x = 165,279.37

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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.