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Finding the Fourth Proportional to 216,304.80, 298,509.12 and 125,659.68

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Solution

The fourth proportional to 216,304.80, 298,509.12 and 125,659.68 is: 173,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,304.80 : 298,509.12 = 125,659.68 : x
  2. Step 2: Convert to fraction form
    216,304.80/298,509.12 = 125,659.68/x
  3. Step 3: Cross multiply
    216,304.80x = 298,509.12 × 125,659.68
  4. Step 4: Simplify right side
    216,304.80x = 37,510,560,496.28
  5. Step 5: Solve for x
    x = 37,510,560,496.28/216,304.80
  6. Step 6: Final answer
    x = 173,415.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.