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Finding the Fourth Proportional to 383,661, 529,520.58 and 240,543.72

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Solution

The fourth proportional to 383,661, 529,520.58 and 240,543.72 is: 331,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,661 : 529,520.58 = 240,543.72 : x
  2. Step 2: Convert to fraction form
    383,661/529,520.58 = 240,543.72/x
  3. Step 3: Cross multiply
    383,661x = 529,520.58 × 240,543.72
  4. Step 4: Simplify right side
    383,661x = 127,372,850,129.76
  5. Step 5: Solve for x
    x = 127,372,850,129.76/383,661
  6. Step 6: Final answer
    x = 331,993.22

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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.