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Finding the Fourth Proportional to 355,078.60, 532,358.70 and 144,608.20

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Solution

The fourth proportional to 355,078.60, 532,358.70 and 144,608.20 is: 216,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,078.60 : 532,358.70 = 144,608.20 : x
  2. Step 2: Convert to fraction form
    355,078.60/532,358.70 = 144,608.20/x
  3. Step 3: Cross multiply
    355,078.60x = 532,358.70 × 144,608.20
  4. Step 4: Simplify right side
    355,078.60x = 76,983,433,361.34
  5. Step 5: Solve for x
    x = 76,983,433,361.34/355,078.60
  6. Step 6: Final answer
    x = 216,806.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.