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Finding the Fourth Proportional to 376,379.64, 519,184.62 and 242,243.64

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Solution

The fourth proportional to 376,379.64, 519,184.62 and 242,243.64 is: 334,155.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,379.64 : 519,184.62 = 242,243.64 : x
  2. Step 2: Convert to fraction form
    376,379.64/519,184.62 = 242,243.64/x
  3. Step 3: Cross multiply
    376,379.64x = 519,184.62 × 242,243.64
  4. Step 4: Simplify right side
    376,379.64x = 125,769,172,180.82
  5. Step 5: Solve for x
    x = 125,769,172,180.82/376,379.64
  6. Step 6: Final answer
    x = 334,155.09

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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.