Home / 279,022.40-385,046.04-151,696.88

Finding the Fourth Proportional to 279,022.40, 385,046.04 and 151,696.88

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Solution

The fourth proportional to 279,022.40, 385,046.04 and 151,696.88 is: 209,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,022.40 : 385,046.04 = 151,696.88 : x
  2. Step 2: Convert to fraction form
    279,022.40/385,046.04 = 151,696.88/x
  3. Step 3: Cross multiply
    279,022.40x = 385,046.04 × 151,696.88
  4. Step 4: Simplify right side
    279,022.40x = 58,410,282,924.36
  5. Step 5: Solve for x
    x = 58,410,282,924.36/279,022.40
  6. Step 6: Final answer
    x = 209,339.05

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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.