Home / 210,279.89-290,184.26-129,675.17

Finding the Fourth Proportional to 210,279.89, 290,184.26 and 129,675.17

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Solution

The fourth proportional to 210,279.89, 290,184.26 and 129,675.17 is: 178,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,279.89 : 290,184.26 = 129,675.17 : x
  2. Step 2: Convert to fraction form
    210,279.89/290,184.26 = 129,675.17/x
  3. Step 3: Cross multiply
    210,279.89x = 290,184.26 × 129,675.17
  4. Step 4: Simplify right side
    210,279.89x = 37,629,691,147.53
  5. Step 5: Solve for x
    x = 37,629,691,147.53/210,279.89
  6. Step 6: Final answer
    x = 178,950.50

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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.