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Finding the Fourth Proportional to 383,707.86, 529,851.15 and 240,713.70

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Solution

The fourth proportional to 383,707.86, 529,851.15 and 240,713.70 is: 332,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,707.86 : 529,851.15 = 240,713.70 : x
  2. Step 2: Convert to fraction form
    383,707.86/529,851.15 = 240,713.70/x
  3. Step 3: Cross multiply
    383,707.86x = 529,851.15 × 240,713.70
  4. Step 4: Simplify right side
    383,707.86x = 127,542,430,765.76
  5. Step 5: Solve for x
    x = 127,542,430,765.76/383,707.86
  6. Step 6: Final answer
    x = 332,394.63

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1.5x scale

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.