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Finding the Fourth Proportional to 581,007.60, 871,338.60 and 225,817.20

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Solution

The fourth proportional to 581,007.60, 871,338.60 and 225,817.20 is: 338,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,007.60 : 871,338.60 = 225,817.20 : x
  2. Step 2: Convert to fraction form
    581,007.60/871,338.60 = 225,817.20/x
  3. Step 3: Cross multiply
    581,007.60x = 871,338.60 × 225,817.20
  4. Step 4: Simplify right side
    581,007.60x = 196,763,242,903.92
  5. Step 5: Solve for x
    x = 196,763,242,903.92/581,007.60
  6. Step 6: Final answer
    x = 338,658.64

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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.