Home / 379,176.42-523,266.57-209,413.38

Finding the Fourth Proportional to 379,176.42, 523,266.57 and 209,413.38

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Solution

The fourth proportional to 379,176.42, 523,266.57 and 209,413.38 is: 288,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,176.42 : 523,266.57 = 209,413.38 : x
  2. Step 2: Convert to fraction form
    379,176.42/523,266.57 = 209,413.38/x
  3. Step 3: Cross multiply
    379,176.42x = 523,266.57 × 209,413.38
  4. Step 4: Simplify right side
    379,176.42x = 109,579,021,064.71
  5. Step 5: Solve for x
    x = 109,579,021,064.71/379,176.42
  6. Step 6: Final answer
    x = 288,992.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.