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Finding the Fourth Proportional to 361,603.04, 542,334.02 and 265,943.66

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Solution

The fourth proportional to 361,603.04, 542,334.02 and 265,943.66 is: 398,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,603.04 : 542,334.02 = 265,943.66 : x
  2. Step 2: Convert to fraction form
    361,603.04/542,334.02 = 265,943.66/x
  3. Step 3: Cross multiply
    361,603.04x = 542,334.02 × 265,943.66
  4. Step 4: Simplify right side
    361,603.04x = 144,230,290,179.93
  5. Step 5: Solve for x
    x = 144,230,290,179.93/361,603.04
  6. Step 6: Final answer
    x = 398,863.61

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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.