Home / 279,039.56-385,264.66-187,296.44

Finding the Fourth Proportional to 279,039.56, 385,264.66 and 187,296.44

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Solution

The fourth proportional to 279,039.56, 385,264.66 and 187,296.44 is: 258,596.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,039.56 : 385,264.66 = 187,296.44 : x
  2. Step 2: Convert to fraction form
    279,039.56/385,264.66 = 187,296.44/x
  3. Step 3: Cross multiply
    279,039.56x = 385,264.66 × 187,296.44
  4. Step 4: Simplify right side
    279,039.56x = 72,158,699,275.81
  5. Step 5: Solve for x
    x = 72,158,699,275.81/279,039.56
  6. Step 6: Final answer
    x = 258,596.66

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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.