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Finding the Fourth Proportional to 368,452.80, 553,003.20 and 218,505.60

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Solution

The fourth proportional to 368,452.80, 553,003.20 and 218,505.60 is: 327,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,452.80 : 553,003.20 = 218,505.60 : x
  2. Step 2: Convert to fraction form
    368,452.80/553,003.20 = 218,505.60/x
  3. Step 3: Cross multiply
    368,452.80x = 553,003.20 × 218,505.60
  4. Step 4: Simplify right side
    368,452.80x = 120,834,296,017.92
  5. Step 5: Solve for x
    x = 120,834,296,017.92/368,452.80
  6. Step 6: Final answer
    x = 327,950.54

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1.5x scale

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.