Home / 217,740.38-300,465.06-122,228.96

Finding the Fourth Proportional to 217,740.38, 300,465.06 and 122,228.96

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Solution

The fourth proportional to 217,740.38, 300,465.06 and 122,228.96 is: 168,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,740.38 : 300,465.06 = 122,228.96 : x
  2. Step 2: Convert to fraction form
    217,740.38/300,465.06 = 122,228.96/x
  3. Step 3: Cross multiply
    217,740.38x = 300,465.06 × 122,228.96
  4. Step 4: Simplify right side
    217,740.38x = 36,725,531,800.14
  5. Step 5: Solve for x
    x = 36,725,531,800.14/217,740.38
  6. Step 6: Final answer
    x = 168,666.61

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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.