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Finding the Fourth Proportional to 401,188.80, 601,045.08 and 251,401.17

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Solution

The fourth proportional to 401,188.80, 601,045.08 and 251,401.17 is: 376,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,188.80 : 601,045.08 = 251,401.17 : x
  2. Step 2: Convert to fraction form
    401,188.80/601,045.08 = 251,401.17/x
  3. Step 3: Cross multiply
    401,188.80x = 601,045.08 × 251,401.17
  4. Step 4: Simplify right side
    401,188.80x = 151,103,436,334.74
  5. Step 5: Solve for x
    x = 151,103,436,334.74/401,188.80
  6. Step 6: Final answer
    x = 376,639.22

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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.