Home / 213,001.20-319,230.45-113,209.20

Finding the Fourth Proportional to 213,001.20, 319,230.45 and 113,209.20

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Solution

The fourth proportional to 213,001.20, 319,230.45 and 113,209.20 is: 169,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,001.20 : 319,230.45 = 113,209.20 : x
  2. Step 2: Convert to fraction form
    213,001.20/319,230.45 = 113,209.20/x
  3. Step 3: Cross multiply
    213,001.20x = 319,230.45 × 113,209.20
  4. Step 4: Simplify right side
    213,001.20x = 36,139,823,860.14
  5. Step 5: Solve for x
    x = 36,139,823,860.14/213,001.20
  6. Step 6: Final answer
    x = 169,669.58

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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.