Home / 217,727.52-300,461.34-122,231.76

Finding the Fourth Proportional to 217,727.52, 300,461.34 and 122,231.76

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Solution

The fourth proportional to 217,727.52, 300,461.34 and 122,231.76 is: 168,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,727.52 : 300,461.34 = 122,231.76 : x
  2. Step 2: Convert to fraction form
    217,727.52/300,461.34 = 122,231.76/x
  3. Step 3: Cross multiply
    217,727.52x = 300,461.34 × 122,231.76
  4. Step 4: Simplify right side
    217,727.52x = 36,725,918,400.16
  5. Step 5: Solve for x
    x = 36,725,918,400.16/217,727.52
  6. Step 6: Final answer
    x = 168,678.35

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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.