Home / 279,002.31-385,053.24-158,130.60

Finding the Fourth Proportional to 279,002.31, 385,053.24 and 158,130.60

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Solution

The fourth proportional to 279,002.31, 385,053.24 and 158,130.60 is: 218,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,002.31 : 385,053.24 = 158,130.60 : x
  2. Step 2: Convert to fraction form
    279,002.31/385,053.24 = 158,130.60/x
  3. Step 3: Cross multiply
    279,002.31x = 385,053.24 × 158,130.60
  4. Step 4: Simplify right side
    279,002.31x = 60,888,699,873.14
  5. Step 5: Solve for x
    x = 60,888,699,873.14/279,002.31
  6. Step 6: Final answer
    x = 218,237.26

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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.