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Finding the Fourth Proportional to 216,799.80, 325,256.40 and 83,684.40

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Solution

The fourth proportional to 216,799.80, 325,256.40 and 83,684.40 is: 125,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,799.80 : 325,256.40 = 83,684.40 : x
  2. Step 2: Convert to fraction form
    216,799.80/325,256.40 = 83,684.40/x
  3. Step 3: Cross multiply
    216,799.80x = 325,256.40 × 83,684.40
  4. Step 4: Simplify right side
    216,799.80x = 27,218,886,680.16
  5. Step 5: Solve for x
    x = 27,218,886,680.16/216,799.80
  6. Step 6: Final answer
    x = 125,548.49

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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.