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Finding the Fourth Proportional to 303,210.60, 454,856.40 and 103,480.80

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Solution

The fourth proportional to 303,210.60, 454,856.40 and 103,480.80 is: 155,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,210.60 : 454,856.40 = 103,480.80 : x
  2. Step 2: Convert to fraction form
    303,210.60/454,856.40 = 103,480.80/x
  3. Step 3: Cross multiply
    303,210.60x = 454,856.40 × 103,480.80
  4. Step 4: Simplify right side
    303,210.60x = 47,068,904,157.12
  5. Step 5: Solve for x
    x = 47,068,904,157.12/303,210.60
  6. Step 6: Final answer
    x = 155,235.02

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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.