Home / 213,534.20-319,718.10-154,047.80

Finding the Fourth Proportional to 213,534.20, 319,718.10 and 154,047.80

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Solution

The fourth proportional to 213,534.20, 319,718.10 and 154,047.80 is: 230,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,534.20 : 319,718.10 = 154,047.80 : x
  2. Step 2: Convert to fraction form
    213,534.20/319,718.10 = 154,047.80/x
  3. Step 3: Cross multiply
    213,534.20x = 319,718.10 × 154,047.80
  4. Step 4: Simplify right side
    213,534.20x = 49,251,869,925.18
  5. Step 5: Solve for x
    x = 49,251,869,925.18/213,534.20
  6. Step 6: Final answer
    x = 230,650.97

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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.