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Finding the Fourth Proportional to 376,881.84, 520,095.24 and 215,736

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Solution

The fourth proportional to 376,881.84, 520,095.24 and 215,736 is: 297,714.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,881.84 : 520,095.24 = 215,736 : x
  2. Step 2: Convert to fraction form
    376,881.84/520,095.24 = 215,736/x
  3. Step 3: Cross multiply
    376,881.84x = 520,095.24 × 215,736
  4. Step 4: Simplify right side
    376,881.84x = 112,203,266,696.64
  5. Step 5: Solve for x
    x = 112,203,266,696.64/376,881.84
  6. Step 6: Final answer
    x = 297,714.71

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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.