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Finding the Fourth Proportional to 216,880.80, 325,167.60 and 83,709.60

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Solution

The fourth proportional to 216,880.80, 325,167.60 and 83,709.60 is: 125,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,880.80 : 325,167.60 = 83,709.60 : x
  2. Step 2: Convert to fraction form
    216,880.80/325,167.60 = 83,709.60/x
  3. Step 3: Cross multiply
    216,880.80x = 325,167.60 × 83,709.60
  4. Step 4: Simplify right side
    216,880.80x = 27,219,649,728.96
  5. Step 5: Solve for x
    x = 27,219,649,728.96/216,880.80
  6. Step 6: Final answer
    x = 125,505.11

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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.