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Finding the Fourth Proportional to 376,250.32, 519,077.64 and 215,018.87

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Solution

The fourth proportional to 376,250.32, 519,077.64 and 215,018.87 is: 296,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,250.32 : 519,077.64 = 215,018.87 : x
  2. Step 2: Convert to fraction form
    376,250.32/519,077.64 = 215,018.87/x
  3. Step 3: Cross multiply
    376,250.32x = 519,077.64 × 215,018.87
  4. Step 4: Simplify right side
    376,250.32x = 111,611,490,672.35
  5. Step 5: Solve for x
    x = 111,611,490,672.35/376,250.32
  6. Step 6: Final answer
    x = 296,641.58

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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.