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Finding the Fourth Proportional to 376,998.98, 565,539.70 and 163,620.20

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Solution

The fourth proportional to 376,998.98, 565,539.70 and 163,620.20 is: 245,448.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,998.98 : 565,539.70 = 163,620.20 : x
  2. Step 2: Convert to fraction form
    376,998.98/565,539.70 = 163,620.20/x
  3. Step 3: Cross multiply
    376,998.98x = 565,539.70 × 163,620.20
  4. Step 4: Simplify right side
    376,998.98x = 92,533,718,821.94
  5. Step 5: Solve for x
    x = 92,533,718,821.94/376,998.98
  6. Step 6: Final answer
    x = 245,448.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.