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Finding the Fourth Proportional to 242,608.40, 363,912.60 and 216,947.60

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Solution

The fourth proportional to 242,608.40, 363,912.60 and 216,947.60 is: 325,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,608.40 : 363,912.60 = 216,947.60 : x
  2. Step 2: Convert to fraction form
    242,608.40/363,912.60 = 216,947.60/x
  3. Step 3: Cross multiply
    242,608.40x = 363,912.60 × 216,947.60
  4. Step 4: Simplify right side
    242,608.40x = 78,949,965,179.76
  5. Step 5: Solve for x
    x = 78,949,965,179.76/242,608.40
  6. Step 6: Final answer
    x = 325,421.40

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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.