Home / 279,026.51-385,069.76-158,170.16

Finding the Fourth Proportional to 279,026.51, 385,069.76 and 158,170.16

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Solution

The fourth proportional to 279,026.51, 385,069.76 and 158,170.16 is: 218,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,026.51 : 385,069.76 = 158,170.16 : x
  2. Step 2: Convert to fraction form
    279,026.51/385,069.76 = 158,170.16/x
  3. Step 3: Cross multiply
    279,026.51x = 385,069.76 × 158,170.16
  4. Step 4: Simplify right side
    279,026.51x = 60,906,543,427.30
  5. Step 5: Solve for x
    x = 60,906,543,427.30/279,026.51
  6. Step 6: Final answer
    x = 218,282.28

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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.