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Finding the Fourth Proportional to 325,393.60, 488,045.40 and 100,908.40

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Solution

The fourth proportional to 325,393.60, 488,045.40 and 100,908.40 is: 151,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,393.60 : 488,045.40 = 100,908.40 : x
  2. Step 2: Convert to fraction form
    325,393.60/488,045.40 = 100,908.40/x
  3. Step 3: Cross multiply
    325,393.60x = 488,045.40 × 100,908.40
  4. Step 4: Simplify right side
    325,393.60x = 49,247,880,441.36
  5. Step 5: Solve for x
    x = 49,247,880,441.36/325,393.60
  6. Step 6: Final answer
    x = 151,348.64

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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.