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Finding the Fourth Proportional to 383,259.51, 529,117.35 and 254,372.78

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Solution

The fourth proportional to 383,259.51, 529,117.35 and 254,372.78 is: 351,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,259.51 : 529,117.35 = 254,372.78 : x
  2. Step 2: Convert to fraction form
    383,259.51/529,117.35 = 254,372.78/x
  3. Step 3: Cross multiply
    383,259.51x = 529,117.35 × 254,372.78
  4. Step 4: Simplify right side
    383,259.51x = 134,593,048,620.15
  5. Step 5: Solve for x
    x = 134,593,048,620.15/383,259.51
  6. Step 6: Final answer
    x = 351,179.93

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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.