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Finding the Fourth Proportional to 318,155.80, 439,062.80 and 174,918.64

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Solution

The fourth proportional to 318,155.80, 439,062.80 and 174,918.64 is: 241,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,155.80 : 439,062.80 = 174,918.64 : x
  2. Step 2: Convert to fraction form
    318,155.80/439,062.80 = 174,918.64/x
  3. Step 3: Cross multiply
    318,155.80x = 439,062.80 × 174,918.64
  4. Step 4: Simplify right side
    318,155.80x = 76,800,267,850.59
  5. Step 5: Solve for x
    x = 76,800,267,850.59/318,155.80
  6. Step 6: Final answer
    x = 241,392.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.