Home / 217,531.29-326,296.16-122,718.46

Finding the Fourth Proportional to 217,531.29, 326,296.16 and 122,718.46

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Solution

The fourth proportional to 217,531.29, 326,296.16 and 122,718.46 is: 184,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,531.29 : 326,296.16 = 122,718.46 : x
  2. Step 2: Convert to fraction form
    217,531.29/326,296.16 = 122,718.46/x
  3. Step 3: Cross multiply
    217,531.29x = 326,296.16 × 122,718.46
  4. Step 4: Simplify right side
    217,531.29x = 40,042,562,259.11
  5. Step 5: Solve for x
    x = 40,042,562,259.11/217,531.29
  6. Step 6: Final answer
    x = 184,077.25

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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.