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Finding the Fourth Proportional to 356,552.40, 492,055.98 and 203,615.52

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Solution

The fourth proportional to 356,552.40, 492,055.98 and 203,615.52 is: 280,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,552.40 : 492,055.98 = 203,615.52 : x
  2. Step 2: Convert to fraction form
    356,552.40/492,055.98 = 203,615.52/x
  3. Step 3: Cross multiply
    356,552.40x = 492,055.98 × 203,615.52
  4. Step 4: Simplify right side
    356,552.40x = 100,190,234,236.81
  5. Step 5: Solve for x
    x = 100,190,234,236.81/356,552.40
  6. Step 6: Final answer
    x = 280,997.22

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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.