Home / 331,324.81-457,215.69-202,478.77

Finding the Fourth Proportional to 331,324.81, 457,215.69 and 202,478.77

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Solution

The fourth proportional to 331,324.81, 457,215.69 and 202,478.77 is: 279,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,324.81 : 457,215.69 = 202,478.77 : x
  2. Step 2: Convert to fraction form
    331,324.81/457,215.69 = 202,478.77/x
  3. Step 3: Cross multiply
    331,324.81x = 457,215.69 × 202,478.77
  4. Step 4: Simplify right side
    331,324.81x = 92,576,470,727.77
  5. Step 5: Solve for x
    x = 92,576,470,727.77/331,324.81
  6. Step 6: Final answer
    x = 279,413.03

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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.