Home / 307,788.36-424,413.12-200,158.80

Finding the Fourth Proportional to 307,788.36, 424,413.12 and 200,158.80

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Solution

The fourth proportional to 307,788.36, 424,413.12 and 200,158.80 is: 276,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,788.36 : 424,413.12 = 200,158.80 : x
  2. Step 2: Convert to fraction form
    307,788.36/424,413.12 = 200,158.80/x
  3. Step 3: Cross multiply
    307,788.36x = 424,413.12 × 200,158.80
  4. Step 4: Simplify right side
    307,788.36x = 84,950,020,803.46
  5. Step 5: Solve for x
    x = 84,950,020,803.46/307,788.36
  6. Step 6: Final answer
    x = 276,001.41

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1.5x scale

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.