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Finding the Fourth Proportional to 545,073.54, 752,236.74 and 303,355.32

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Solution

The fourth proportional to 545,073.54, 752,236.74 and 303,355.32 is: 418,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,073.54 : 752,236.74 = 303,355.32 : x
  2. Step 2: Convert to fraction form
    545,073.54/752,236.74 = 303,355.32/x
  3. Step 3: Cross multiply
    545,073.54x = 752,236.74 × 303,355.32
  4. Step 4: Simplify right side
    545,073.54x = 228,195,016,978.46
  5. Step 5: Solve for x
    x = 228,195,016,978.46/545,073.54
  6. Step 6: Final answer
    x = 418,649.96

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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.