Home / 347,737.20-521,605.80-111,087.60

Finding the Fourth Proportional to 347,737.20, 521,605.80 and 111,087.60

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Solution

The fourth proportional to 347,737.20, 521,605.80 and 111,087.60 is: 166,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,737.20 : 521,605.80 = 111,087.60 : x
  2. Step 2: Convert to fraction form
    347,737.20/521,605.80 = 111,087.60/x
  3. Step 3: Cross multiply
    347,737.20x = 521,605.80 × 111,087.60
  4. Step 4: Simplify right side
    347,737.20x = 57,943,936,468.08
  5. Step 5: Solve for x
    x = 57,943,936,468.08/347,737.20
  6. Step 6: Final answer
    x = 166,631.40

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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.