Home / 279,671.02-385,917.24-157,143.94

Finding the Fourth Proportional to 279,671.02, 385,917.24 and 157,143.94

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Solution

The fourth proportional to 279,671.02, 385,917.24 and 157,143.94 is: 216,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,671.02 : 385,917.24 = 157,143.94 : x
  2. Step 2: Convert to fraction form
    279,671.02/385,917.24 = 157,143.94/x
  3. Step 3: Cross multiply
    279,671.02x = 385,917.24 × 157,143.94
  4. Step 4: Simplify right side
    279,671.02x = 60,644,555,607.53
  5. Step 5: Solve for x
    x = 60,644,555,607.53/279,671.02
  6. Step 6: Final answer
    x = 216,842.47

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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.