Home / 279,387.20-385,582.45-164,702.29

Finding the Fourth Proportional to 279,387.20, 385,582.45 and 164,702.29

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Solution

The fourth proportional to 279,387.20, 385,582.45 and 164,702.29 is: 227,305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,387.20 : 385,582.45 = 164,702.29 : x
  2. Step 2: Convert to fraction form
    279,387.20/385,582.45 = 164,702.29/x
  3. Step 3: Cross multiply
    279,387.20x = 385,582.45 × 164,702.29
  4. Step 4: Simplify right side
    279,387.20x = 63,506,311,533.66
  5. Step 5: Solve for x
    x = 63,506,311,533.66/279,387.20
  6. Step 6: Final answer
    x = 227,305.73

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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.