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Finding the Fourth Proportional to 400,149.60, 600,019.20 and 119,630.40

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Solution

The fourth proportional to 400,149.60, 600,019.20 and 119,630.40 is: 179,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,149.60 : 600,019.20 = 119,630.40 : x
  2. Step 2: Convert to fraction form
    400,149.60/600,019.20 = 119,630.40/x
  3. Step 3: Cross multiply
    400,149.60x = 600,019.20 × 119,630.40
  4. Step 4: Simplify right side
    400,149.60x = 71,780,536,903.68
  5. Step 5: Solve for x
    x = 71,780,536,903.68/400,149.60
  6. Step 6: Final answer
    x = 179,384.25

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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.