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Finding the Fourth Proportional to 383,697.86, 529,837.35 and 240,703.70

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Solution

The fourth proportional to 383,697.86, 529,837.35 and 240,703.70 is: 332,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,697.86 : 529,837.35 = 240,703.70 : x
  2. Step 2: Convert to fraction form
    383,697.86/529,837.35 = 240,703.70/x
  3. Step 3: Cross multiply
    383,697.86x = 529,837.35 × 240,703.70
  4. Step 4: Simplify right side
    383,697.86x = 127,533,810,543.20
  5. Step 5: Solve for x
    x = 127,533,810,543.20/383,697.86
  6. Step 6: Final answer
    x = 332,380.82

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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.