Home / 217,641.74-300,358.94-122,148.41

Finding the Fourth Proportional to 217,641.74, 300,358.94 and 122,148.41

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Solution

The fourth proportional to 217,641.74, 300,358.94 and 122,148.41 is: 168,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,641.74 : 300,358.94 = 122,148.41 : x
  2. Step 2: Convert to fraction form
    217,641.74/300,358.94 = 122,148.41/x
  3. Step 3: Cross multiply
    217,641.74x = 300,358.94 × 122,148.41
  4. Step 4: Simplify right side
    217,641.74x = 36,688,364,837.75
  5. Step 5: Solve for x
    x = 36,688,364,837.75/217,641.74
  6. Step 6: Final answer
    x = 168,572.29

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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.