Home / 217,428.93-326,236.32-112,321.71

Finding the Fourth Proportional to 217,428.93, 326,236.32 and 112,321.71

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Solution

The fourth proportional to 217,428.93, 326,236.32 and 112,321.71 is: 168,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,428.93 : 326,236.32 = 112,321.71 : x
  2. Step 2: Convert to fraction form
    217,428.93/326,236.32 = 112,321.71/x
  3. Step 3: Cross multiply
    217,428.93x = 326,236.32 × 112,321.71
  4. Step 4: Simplify right side
    217,428.93x = 36,643,421,326.51
  5. Step 5: Solve for x
    x = 36,643,421,326.51/217,428.93
  6. Step 6: Final answer
    x = 168,530.57

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1.5x scale

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.