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Finding the Fourth Proportional to 213,324.60, 319,209.30 and 194,662.20

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Solution

The fourth proportional to 213,324.60, 319,209.30 and 194,662.20 is: 291,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,324.60 : 319,209.30 = 194,662.20 : x
  2. Step 2: Convert to fraction form
    213,324.60/319,209.30 = 194,662.20/x
  3. Step 3: Cross multiply
    213,324.60x = 319,209.30 × 194,662.20
  4. Step 4: Simplify right side
    213,324.60x = 62,137,984,598.46
  5. Step 5: Solve for x
    x = 62,137,984,598.46/213,324.60
  6. Step 6: Final answer
    x = 291,283.73

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1.5x scale

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.