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Finding the Fourth Proportional to 216,793.20, 325,189.80 and 153,807.60

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Solution

The fourth proportional to 216,793.20, 325,189.80 and 153,807.60 is: 230,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,793.20 : 325,189.80 = 153,807.60 : x
  2. Step 2: Convert to fraction form
    216,793.20/325,189.80 = 153,807.60/x
  3. Step 3: Cross multiply
    216,793.20x = 325,189.80 × 153,807.60
  4. Step 4: Simplify right side
    216,793.20x = 50,016,662,682.48
  5. Step 5: Solve for x
    x = 50,016,662,682.48/216,793.20
  6. Step 6: Final answer
    x = 230,711.40

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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.