Home / 217,390.94-326,159.34-84,275.54

Finding the Fourth Proportional to 217,390.94, 326,159.34 and 84,275.54

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Solution

The fourth proportional to 217,390.94, 326,159.34 and 84,275.54 is: 126,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,390.94 : 326,159.34 = 84,275.54 : x
  2. Step 2: Convert to fraction form
    217,390.94/326,159.34 = 84,275.54/x
  3. Step 3: Cross multiply
    217,390.94x = 326,159.34 × 84,275.54
  4. Step 4: Simplify right side
    217,390.94x = 27,487,254,504.54
  5. Step 5: Solve for x
    x = 27,487,254,504.54/217,390.94
  6. Step 6: Final answer
    x = 126,441.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.