Home / 279,479.08-418,844.70-137,106.28

Finding the Fourth Proportional to 279,479.08, 418,844.70 and 137,106.28

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Solution

The fourth proportional to 279,479.08, 418,844.70 and 137,106.28 is: 205,475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,479.08 : 418,844.70 = 137,106.28 : x
  2. Step 2: Convert to fraction form
    279,479.08/418,844.70 = 137,106.28/x
  3. Step 3: Cross multiply
    279,479.08x = 418,844.70 × 137,106.28
  4. Step 4: Simplify right side
    279,479.08x = 57,426,238,714.72
  5. Step 5: Solve for x
    x = 57,426,238,714.72/279,479.08
  6. Step 6: Final answer
    x = 205,475.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.