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Finding the Fourth Proportional to 216,680.40, 325,020.60 and 189,032.40

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Solution

The fourth proportional to 216,680.40, 325,020.60 and 189,032.40 is: 283,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,680.40 : 325,020.60 = 189,032.40 : x
  2. Step 2: Convert to fraction form
    216,680.40/325,020.60 = 189,032.40/x
  3. Step 3: Cross multiply
    216,680.40x = 325,020.60 × 189,032.40
  4. Step 4: Simplify right side
    216,680.40x = 61,439,424,067.44
  5. Step 5: Solve for x
    x = 61,439,424,067.44/216,680.40
  6. Step 6: Final answer
    x = 283,548.60

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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.