Home / 397,122.12-595,726.74-172,328.04

Finding the Fourth Proportional to 397,122.12, 595,726.74 and 172,328.04

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Solution

The fourth proportional to 397,122.12, 595,726.74 and 172,328.04 is: 258,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,122.12 : 595,726.74 = 172,328.04 : x
  2. Step 2: Convert to fraction form
    397,122.12/595,726.74 = 172,328.04/x
  3. Step 3: Cross multiply
    397,122.12x = 595,726.74 × 172,328.04
  4. Step 4: Simplify right side
    397,122.12x = 102,660,421,479.79
  5. Step 5: Solve for x
    x = 102,660,421,479.79/397,122.12
  6. Step 6: Final answer
    x = 258,510.96

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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.