Home / 217,915.35-326,808.23-84,718.95

Finding the Fourth Proportional to 217,915.35, 326,808.23 and 84,718.95

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Solution

The fourth proportional to 217,915.35, 326,808.23 and 84,718.95 is: 127,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,915.35 : 326,808.23 = 84,718.95 : x
  2. Step 2: Convert to fraction form
    217,915.35/326,808.23 = 84,718.95/x
  3. Step 3: Cross multiply
    217,915.35x = 326,808.23 × 84,718.95
  4. Step 4: Simplify right side
    217,915.35x = 27,686,849,673.36
  5. Step 5: Solve for x
    x = 27,686,849,673.36/217,915.35
  6. Step 6: Final answer
    x = 127,053.23

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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.