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Finding the Fourth Proportional to 376,178.64, 519,126.53 and 215,037.17

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Solution

The fourth proportional to 376,178.64, 519,126.53 and 215,037.17 is: 296,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,178.64 : 519,126.53 = 215,037.17 : x
  2. Step 2: Convert to fraction form
    376,178.64/519,126.53 = 215,037.17/x
  3. Step 3: Cross multiply
    376,178.64x = 519,126.53 × 215,037.17
  4. Step 4: Simplify right side
    376,178.64x = 111,631,499,883.12
  5. Step 5: Solve for x
    x = 111,631,499,883.12/376,178.64
  6. Step 6: Final answer
    x = 296,751.30

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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.