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Finding the Fourth Proportional to 330,079.39, 495,039.44 and 152,415.61

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Solution

The fourth proportional to 330,079.39, 495,039.44 and 152,415.61 is: 228,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,079.39 : 495,039.44 = 152,415.61 : x
  2. Step 2: Convert to fraction form
    330,079.39/495,039.44 = 152,415.61/x
  3. Step 3: Cross multiply
    330,079.39x = 495,039.44 × 152,415.61
  4. Step 4: Simplify right side
    330,079.39x = 75,451,737,459.58
  5. Step 5: Solve for x
    x = 75,451,737,459.58/330,079.39
  6. Step 6: Final answer
    x = 228,586.64

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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.