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Finding the Fourth Proportional to 480,247.21, 720,344.73 and 243,583.69

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Solution

The fourth proportional to 480,247.21, 720,344.73 and 243,583.69 is: 365,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,247.21 : 720,344.73 = 243,583.69 : x
  2. Step 2: Convert to fraction form
    480,247.21/720,344.73 = 243,583.69/x
  3. Step 3: Cross multiply
    480,247.21x = 720,344.73 × 243,583.69
  4. Step 4: Simplify right side
    480,247.21x = 175,464,227,405.45
  5. Step 5: Solve for x
    x = 175,464,227,405.45/480,247.21
  6. Step 6: Final answer
    x = 365,362.30

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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.