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Finding the Fourth Proportional to 377,773.98, 521,331.57 and 208,014.18

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Solution

The fourth proportional to 377,773.98, 521,331.57 and 208,014.18 is: 287,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,773.98 : 521,331.57 = 208,014.18 : x
  2. Step 2: Convert to fraction form
    377,773.98/521,331.57 = 208,014.18/x
  3. Step 3: Cross multiply
    377,773.98x = 521,331.57 × 208,014.18
  4. Step 4: Simplify right side
    377,773.98x = 108,444,359,041.66
  5. Step 5: Solve for x
    x = 108,444,359,041.66/377,773.98
  6. Step 6: Final answer
    x = 287,061.48

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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.