Home / 210,876.10-315,853.35-163,759.30

Finding the Fourth Proportional to 210,876.10, 315,853.35 and 163,759.30

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Solution

The fourth proportional to 210,876.10, 315,853.35 and 163,759.30 is: 245,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,876.10 : 315,853.35 = 163,759.30 : x
  2. Step 2: Convert to fraction form
    210,876.10/315,853.35 = 163,759.30/x
  3. Step 3: Cross multiply
    210,876.10x = 315,853.35 × 163,759.30
  4. Step 4: Simplify right side
    210,876.10x = 51,723,923,498.66
  5. Step 5: Solve for x
    x = 51,723,923,498.66/210,876.10
  6. Step 6: Final answer
    x = 245,281.11

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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.