Home / 279,316.13-385,453.01-151,989.53

Finding the Fourth Proportional to 279,316.13, 385,453.01 and 151,989.53

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Solution

The fourth proportional to 279,316.13, 385,453.01 and 151,989.53 is: 209,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,316.13 : 385,453.01 = 151,989.53 : x
  2. Step 2: Convert to fraction form
    279,316.13/385,453.01 = 151,989.53/x
  3. Step 3: Cross multiply
    279,316.13x = 385,453.01 × 151,989.53
  4. Step 4: Simplify right side
    279,316.13x = 58,584,820,279.69
  5. Step 5: Solve for x
    x = 58,584,820,279.69/279,316.13
  6. Step 6: Final answer
    x = 209,743.78

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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.