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Finding the Fourth Proportional to 290,625.84, 401,068.44 and 159,809.04

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Solution

The fourth proportional to 290,625.84, 401,068.44 and 159,809.04 is: 220,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,625.84 : 401,068.44 = 159,809.04 : x
  2. Step 2: Convert to fraction form
    290,625.84/401,068.44 = 159,809.04/x
  3. Step 3: Cross multiply
    290,625.84x = 401,068.44 × 159,809.04
  4. Step 4: Simplify right side
    290,625.84x = 64,094,362,370.70
  5. Step 5: Solve for x
    x = 64,094,362,370.70/290,625.84
  6. Step 6: Final answer
    x = 220,539.10

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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.