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Finding the Fourth Proportional to 388,054.72, 582,203.58 and 246,781

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Solution

The fourth proportional to 388,054.72, 582,203.58 and 246,781 is: 370,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,054.72 : 582,203.58 = 246,781 : x
  2. Step 2: Convert to fraction form
    388,054.72/582,203.58 = 246,781/x
  3. Step 3: Cross multiply
    388,054.72x = 582,203.58 × 246,781
  4. Step 4: Simplify right side
    388,054.72x = 143,676,781,675.98
  5. Step 5: Solve for x
    x = 143,676,781,675.98/388,054.72
  6. Step 6: Final answer
    x = 370,248.77

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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.