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Finding the Fourth Proportional to 407,441.10, 611,380.35 and 170,807.70

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Solution

The fourth proportional to 407,441.10, 611,380.35 and 170,807.70 is: 256,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,441.10 : 611,380.35 = 170,807.70 : x
  2. Step 2: Convert to fraction form
    407,441.10/611,380.35 = 170,807.70/x
  3. Step 3: Cross multiply
    407,441.10x = 611,380.35 × 170,807.70
  4. Step 4: Simplify right side
    407,441.10x = 104,428,471,408.70
  5. Step 5: Solve for x
    x = 104,428,471,408.70/407,441.10
  6. Step 6: Final answer
    x = 256,303.23

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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.