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Finding the Fourth Proportional to 376,841.40, 520,035.24 and 207,071.88

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Solution

The fourth proportional to 376,841.40, 520,035.24 and 207,071.88 is: 285,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,841.40 : 520,035.24 = 207,071.88 : x
  2. Step 2: Convert to fraction form
    376,841.40/520,035.24 = 207,071.88/x
  3. Step 3: Cross multiply
    376,841.40x = 520,035.24 × 207,071.88
  4. Step 4: Simplify right side
    376,841.40x = 107,684,674,813.05
  5. Step 5: Solve for x
    x = 107,684,674,813.05/376,841.40
  6. Step 6: Final answer
    x = 285,755.96

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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.