Home / 397,849.12-597,013.24-145,151.80

Finding the Fourth Proportional to 397,849.12, 597,013.24 and 145,151.80

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Solution

The fourth proportional to 397,849.12, 597,013.24 and 145,151.80 is: 217,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,849.12 : 597,013.24 = 145,151.80 : x
  2. Step 2: Convert to fraction form
    397,849.12/597,013.24 = 145,151.80/x
  3. Step 3: Cross multiply
    397,849.12x = 597,013.24 × 145,151.80
  4. Step 4: Simplify right side
    397,849.12x = 86,657,546,409.83
  5. Step 5: Solve for x
    x = 86,657,546,409.83/397,849.12
  6. Step 6: Final answer
    x = 217,815.10

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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.