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Finding the Fourth Proportional to 401,625.52, 602,440.34 and 135,388.32

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Solution

The fourth proportional to 401,625.52, 602,440.34 and 135,388.32 is: 203,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,625.52 : 602,440.34 = 135,388.32 : x
  2. Step 2: Convert to fraction form
    401,625.52/602,440.34 = 135,388.32/x
  3. Step 3: Cross multiply
    401,625.52x = 602,440.34 × 135,388.32
  4. Step 4: Simplify right side
    401,625.52x = 81,563,385,532.83
  5. Step 5: Solve for x
    x = 81,563,385,532.83/401,625.52
  6. Step 6: Final answer
    x = 203,083.17

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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.