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Finding the Fourth Proportional to 337,178.40, 505,767.60 and 87,860.40

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Solution

The fourth proportional to 337,178.40, 505,767.60 and 87,860.40 is: 131,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,178.40 : 505,767.60 = 87,860.40 : x
  2. Step 2: Convert to fraction form
    337,178.40/505,767.60 = 87,860.40/x
  3. Step 3: Cross multiply
    337,178.40x = 505,767.60 × 87,860.40
  4. Step 4: Simplify right side
    337,178.40x = 44,436,943,643.04
  5. Step 5: Solve for x
    x = 44,436,943,643.04/337,178.40
  6. Step 6: Final answer
    x = 131,790.60

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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.