Home / 397,359.20-596,144.40-172,623.20

Finding the Fourth Proportional to 397,359.20, 596,144.40 and 172,623.20

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Solution

The fourth proportional to 397,359.20, 596,144.40 and 172,623.20 is: 258,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,359.20 : 596,144.40 = 172,623.20 : x
  2. Step 2: Convert to fraction form
    397,359.20/596,144.40 = 172,623.20/x
  3. Step 3: Cross multiply
    397,359.20x = 596,144.40 × 172,623.20
  4. Step 4: Simplify right side
    397,359.20x = 102,908,353,990.08
  5. Step 5: Solve for x
    x = 102,908,353,990.08/397,359.20
  6. Step 6: Final answer
    x = 258,980.68

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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.