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Finding the Fourth Proportional to 330,607.56, 495,620.46 and 131,068.20

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Solution

The fourth proportional to 330,607.56, 495,620.46 and 131,068.20 is: 196,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,607.56 : 495,620.46 = 131,068.20 : x
  2. Step 2: Convert to fraction form
    330,607.56/495,620.46 = 131,068.20/x
  3. Step 3: Cross multiply
    330,607.56x = 495,620.46 × 131,068.20
  4. Step 4: Simplify right side
    330,607.56x = 64,960,081,575.37
  5. Step 5: Solve for x
    x = 64,960,081,575.37/330,607.56
  6. Step 6: Final answer
    x = 196,486.98

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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.