Home / 397,212.11-595,482.28-172,403.57

Finding the Fourth Proportional to 397,212.11, 595,482.28 and 172,403.57

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Solution

The fourth proportional to 397,212.11, 595,482.28 and 172,403.57 is: 258,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,212.11 : 595,482.28 = 172,403.57 : x
  2. Step 2: Convert to fraction form
    397,212.11/595,482.28 = 172,403.57/x
  3. Step 3: Cross multiply
    397,212.11x = 595,482.28 × 172,403.57
  4. Step 4: Simplify right side
    397,212.11x = 102,663,270,943.74
  5. Step 5: Solve for x
    x = 102,663,270,943.74/397,212.11
  6. Step 6: Final answer
    x = 258,459.57

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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.