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Finding the Fourth Proportional to 383,600.96, 529,265.47 and 218,026.63

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Solution

The fourth proportional to 383,600.96, 529,265.47 and 218,026.63 is: 300,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,600.96 : 529,265.47 = 218,026.63 : x
  2. Step 2: Convert to fraction form
    383,600.96/529,265.47 = 218,026.63/x
  3. Step 3: Cross multiply
    383,600.96x = 529,265.47 × 218,026.63
  4. Step 4: Simplify right side
    383,600.96x = 115,393,966,799.47
  5. Step 5: Solve for x
    x = 115,393,966,799.47/383,600.96
  6. Step 6: Final answer
    x = 300,817.72

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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.