Home / 211,818.60-317,800.80-132,840.36

Finding the Fourth Proportional to 211,818.60, 317,800.80 and 132,840.36

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Solution

The fourth proportional to 211,818.60, 317,800.80 and 132,840.36 is: 199,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,818.60 : 317,800.80 = 132,840.36 : x
  2. Step 2: Convert to fraction form
    211,818.60/317,800.80 = 132,840.36/x
  3. Step 3: Cross multiply
    211,818.60x = 317,800.80 × 132,840.36
  4. Step 4: Simplify right side
    211,818.60x = 42,216,772,680.29
  5. Step 5: Solve for x
    x = 42,216,772,680.29/211,818.60
  6. Step 6: Final answer
    x = 199,306.26

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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.