Home / 217,390.40-326,087.70-82,418.18

Finding the Fourth Proportional to 217,390.40, 326,087.70 and 82,418.18

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Solution

The fourth proportional to 217,390.40, 326,087.70 and 82,418.18 is: 123,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,390.40 : 326,087.70 = 82,418.18 : x
  2. Step 2: Convert to fraction form
    217,390.40/326,087.70 = 82,418.18/x
  3. Step 3: Cross multiply
    217,390.40x = 326,087.70 × 82,418.18
  4. Step 4: Simplify right side
    217,390.40x = 26,875,553,510.28
  5. Step 5: Solve for x
    x = 26,875,553,510.28/217,390.40
  6. Step 6: Final answer
    x = 123,628.06

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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.