Home / 253,741.89-380,619.01-85,264.66

Finding the Fourth Proportional to 253,741.89, 380,619.01 and 85,264.66

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Solution

The fourth proportional to 253,741.89, 380,619.01 and 85,264.66 is: 127,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,741.89 : 380,619.01 = 85,264.66 : x
  2. Step 2: Convert to fraction form
    253,741.89/380,619.01 = 85,264.66/x
  3. Step 3: Cross multiply
    253,741.89x = 380,619.01 × 85,264.66
  4. Step 4: Simplify right side
    253,741.89x = 32,453,350,690.35
  5. Step 5: Solve for x
    x = 32,453,350,690.35/253,741.89
  6. Step 6: Final answer
    x = 127,899.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.