Home / 279,138.06-385,046.46-175,607.64

Finding the Fourth Proportional to 279,138.06, 385,046.46 and 175,607.64

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Solution

The fourth proportional to 279,138.06, 385,046.46 and 175,607.64 is: 242,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,138.06 : 385,046.46 = 175,607.64 : x
  2. Step 2: Convert to fraction form
    279,138.06/385,046.46 = 175,607.64/x
  3. Step 3: Cross multiply
    279,138.06x = 385,046.46 × 175,607.64
  4. Step 4: Simplify right side
    279,138.06x = 67,617,100,130.95
  5. Step 5: Solve for x
    x = 67,617,100,130.95/279,138.06
  6. Step 6: Final answer
    x = 242,235.33

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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.