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Finding the Fourth Proportional to 383,697.36, 529,836.66 and 240,703.20

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Solution

The fourth proportional to 383,697.36, 529,836.66 and 240,703.20 is: 332,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,697.36 : 529,836.66 = 240,703.20 : x
  2. Step 2: Convert to fraction form
    383,697.36/529,836.66 = 240,703.20/x
  3. Step 3: Cross multiply
    383,697.36x = 529,836.66 × 240,703.20
  4. Step 4: Simplify right side
    383,697.36x = 127,533,379,539.31
  5. Step 5: Solve for x
    x = 127,533,379,539.31/383,697.36
  6. Step 6: Final answer
    x = 332,380.13

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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.