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Finding the Fourth Proportional to 480,222.21, 720,527.11 and 213,800.66

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Solution

The fourth proportional to 480,222.21, 720,527.11 and 213,800.66 is: 320,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,222.21 : 720,527.11 = 213,800.66 : x
  2. Step 2: Convert to fraction form
    480,222.21/720,527.11 = 213,800.66/x
  3. Step 3: Cross multiply
    480,222.21x = 720,527.11 × 213,800.66
  4. Step 4: Simplify right side
    480,222.21x = 154,049,167,528.76
  5. Step 5: Solve for x
    x = 154,049,167,528.76/480,222.21
  6. Step 6: Final answer
    x = 320,787.26

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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.