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Finding the Fourth Proportional to 376,337.70, 520,092.63 and 308,246.85

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Solution

The fourth proportional to 376,337.70, 520,092.63 and 308,246.85 is: 425,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,337.70 : 520,092.63 = 308,246.85 : x
  2. Step 2: Convert to fraction form
    376,337.70/520,092.63 = 308,246.85/x
  3. Step 3: Cross multiply
    376,337.70x = 520,092.63 × 308,246.85
  4. Step 4: Simplify right side
    376,337.70x = 160,316,914,905.72
  5. Step 5: Solve for x
    x = 160,316,914,905.72/376,337.70
  6. Step 6: Final answer
    x = 425,992.17

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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.