Home / 217,904.67-300,736.47-122,411.43

Finding the Fourth Proportional to 217,904.67, 300,736.47 and 122,411.43

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Solution

The fourth proportional to 217,904.67, 300,736.47 and 122,411.43 is: 168,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,904.67 : 300,736.47 = 122,411.43 : x
  2. Step 2: Convert to fraction form
    217,904.67/300,736.47 = 122,411.43/x
  3. Step 3: Cross multiply
    217,904.67x = 300,736.47 × 122,411.43
  4. Step 4: Simplify right side
    217,904.67x = 36,813,581,345.85
  5. Step 5: Solve for x
    x = 36,813,581,345.85/217,904.67
  6. Step 6: Final answer
    x = 168,943.52

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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.