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Finding the Fourth Proportional to 383,405.73, 529,088.11 and 240,244.71

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Solution

The fourth proportional to 383,405.73, 529,088.11 and 240,244.71 is: 331,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,405.73 : 529,088.11 = 240,244.71 : x
  2. Step 2: Convert to fraction form
    383,405.73/529,088.11 = 240,244.71/x
  3. Step 3: Cross multiply
    383,405.73x = 529,088.11 × 240,244.71
  4. Step 4: Simplify right side
    383,405.73x = 127,110,619,551.40
  5. Step 5: Solve for x
    x = 127,110,619,551.40/383,405.73
  6. Step 6: Final answer
    x = 331,530.31

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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.