Home / 217,918.15-326,908.41-105,506.08

Finding the Fourth Proportional to 217,918.15, 326,908.41 and 105,506.08

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Solution

The fourth proportional to 217,918.15, 326,908.41 and 105,506.08 is: 158,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,918.15 : 326,908.41 = 105,506.08 : x
  2. Step 2: Convert to fraction form
    217,918.15/326,908.41 = 105,506.08/x
  3. Step 3: Cross multiply
    217,918.15x = 326,908.41 × 105,506.08
  4. Step 4: Simplify right side
    217,918.15x = 34,490,823,645.21
  5. Step 5: Solve for x
    x = 34,490,823,645.21/217,918.15
  6. Step 6: Final answer
    x = 158,274.21

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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.