Home / 211,930.40-317,895.60-93,540.80

Finding the Fourth Proportional to 211,930.40, 317,895.60 and 93,540.80

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Solution

The fourth proportional to 211,930.40, 317,895.60 and 93,540.80 is: 140,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,930.40 : 317,895.60 = 93,540.80 : x
  2. Step 2: Convert to fraction form
    211,930.40/317,895.60 = 93,540.80/x
  3. Step 3: Cross multiply
    211,930.40x = 317,895.60 × 93,540.80
  4. Step 4: Simplify right side
    211,930.40x = 29,736,208,740.48
  5. Step 5: Solve for x
    x = 29,736,208,740.48/211,930.40
  6. Step 6: Final answer
    x = 140,311.20

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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.