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Finding the Fourth Proportional to 303,281.60, 454,879.20 and 103,611.20

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Solution

The fourth proportional to 303,281.60, 454,879.20 and 103,611.20 is: 155,402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,281.60 : 454,879.20 = 103,611.20 : x
  2. Step 2: Convert to fraction form
    303,281.60/454,879.20 = 103,611.20/x
  3. Step 3: Cross multiply
    303,281.60x = 454,879.20 × 103,611.20
  4. Step 4: Simplify right side
    303,281.60x = 47,130,579,767.04
  5. Step 5: Solve for x
    x = 47,130,579,767.04/303,281.60
  6. Step 6: Final answer
    x = 155,402.04

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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.