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Finding the Fourth Proportional to 368,867.68, 553,440.96 and 144,388.54

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Solution

The fourth proportional to 368,867.68, 553,440.96 and 144,388.54 is: 216,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,867.68 : 553,440.96 = 144,388.54 : x
  2. Step 2: Convert to fraction form
    368,867.68/553,440.96 = 144,388.54/x
  3. Step 3: Cross multiply
    368,867.68x = 553,440.96 × 144,388.54
  4. Step 4: Simplify right side
    368,867.68x = 79,910,532,190.60
  5. Step 5: Solve for x
    x = 79,910,532,190.60/368,867.68
  6. Step 6: Final answer
    x = 216,637.39

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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.