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Finding the Fourth Proportional to 410,598.32, 615,919.34 and 130,137.44

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Solution

The fourth proportional to 410,598.32, 615,919.34 and 130,137.44 is: 195,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,598.32 : 615,919.34 = 130,137.44 : x
  2. Step 2: Convert to fraction form
    410,598.32/615,919.34 = 130,137.44/x
  3. Step 3: Cross multiply
    410,598.32x = 615,919.34 × 130,137.44
  4. Step 4: Simplify right side
    410,598.32x = 80,154,163,399.84
  5. Step 5: Solve for x
    x = 80,154,163,399.84/410,598.32
  6. Step 6: Final answer
    x = 195,213.08

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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.