Home / 217,722.06-326,430-84,490.02

Finding the Fourth Proportional to 217,722.06, 326,430 and 84,490.02

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Solution

The fourth proportional to 217,722.06, 326,430 and 84,490.02 is: 126,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,722.06 : 326,430 = 84,490.02 : x
  2. Step 2: Convert to fraction form
    217,722.06/326,430 = 84,490.02/x
  3. Step 3: Cross multiply
    217,722.06x = 326,430 × 84,490.02
  4. Step 4: Simplify right side
    217,722.06x = 27,580,077,228.60
  5. Step 5: Solve for x
    x = 27,580,077,228.60/217,722.06
  6. Step 6: Final answer
    x = 126,675.62

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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.