Home / 217,925.52-300,721.05-122,448.12

Finding the Fourth Proportional to 217,925.52, 300,721.05 and 122,448.12

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Solution

The fourth proportional to 217,925.52, 300,721.05 and 122,448.12 is: 168,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,925.52 : 300,721.05 = 122,448.12 : x
  2. Step 2: Convert to fraction form
    217,925.52/300,721.05 = 122,448.12/x
  3. Step 3: Cross multiply
    217,925.52x = 300,721.05 × 122,448.12
  4. Step 4: Simplify right side
    217,925.52x = 36,822,727,216.93
  5. Step 5: Solve for x
    x = 36,822,727,216.93/217,925.52
  6. Step 6: Final answer
    x = 168,969.32

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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.