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Finding the Fourth Proportional to 104,297.60, 156,446.40 and 100,215.20

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Solution

The fourth proportional to 104,297.60, 156,446.40 and 100,215.20 is: 150,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,297.60 : 156,446.40 = 100,215.20 : x
  2. Step 2: Convert to fraction form
    104,297.60/156,446.40 = 100,215.20/x
  3. Step 3: Cross multiply
    104,297.60x = 156,446.40 × 100,215.20
  4. Step 4: Simplify right side
    104,297.60x = 15,678,307,265.28
  5. Step 5: Solve for x
    x = 15,678,307,265.28/104,297.60
  6. Step 6: Final answer
    x = 150,322.80

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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.