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Finding the Fourth Proportional to 407,134.60, 610,410.30 and 170,355.40

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Solution

The fourth proportional to 407,134.60, 610,410.30 and 170,355.40 is: 255,411.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,134.60 : 610,410.30 = 170,355.40 : x
  2. Step 2: Convert to fraction form
    407,134.60/610,410.30 = 170,355.40/x
  3. Step 3: Cross multiply
    407,134.60x = 610,410.30 × 170,355.40
  4. Step 4: Simplify right side
    407,134.60x = 103,986,690,820.62
  5. Step 5: Solve for x
    x = 103,986,690,820.62/407,134.60
  6. Step 6: Final answer
    x = 255,411.09

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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.