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Finding the Fourth Proportional to 383,240.46, 528,888.18 and 213,474.66

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Solution

The fourth proportional to 383,240.46, 528,888.18 and 213,474.66 is: 294,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,240.46 : 528,888.18 = 213,474.66 : x
  2. Step 2: Convert to fraction form
    383,240.46/528,888.18 = 213,474.66/x
  3. Step 3: Cross multiply
    383,240.46x = 528,888.18 × 213,474.66
  4. Step 4: Simplify right side
    383,240.46x = 112,904,224,403.52
  5. Step 5: Solve for x
    x = 112,904,224,403.52/383,240.46
  6. Step 6: Final answer
    x = 294,604.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.