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Finding the Fourth Proportional to 341,638.32, 512,482.06 and 131,276.20

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Solution

The fourth proportional to 341,638.32, 512,482.06 and 131,276.20 is: 196,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,638.32 : 512,482.06 = 131,276.20 : x
  2. Step 2: Convert to fraction form
    341,638.32/512,482.06 = 131,276.20/x
  3. Step 3: Cross multiply
    341,638.32x = 512,482.06 × 131,276.20
  4. Step 4: Simplify right side
    341,638.32x = 67,276,697,404.97
  5. Step 5: Solve for x
    x = 67,276,697,404.97/341,638.32
  6. Step 6: Final answer
    x = 196,923.74

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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.