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Finding the Fourth Proportional to 330,347.71, 455,867.64 and 179,441.47

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Solution

The fourth proportional to 330,347.71, 455,867.64 and 179,441.47 is: 247,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,347.71 : 455,867.64 = 179,441.47 : x
  2. Step 2: Convert to fraction form
    330,347.71/455,867.64 = 179,441.47/x
  3. Step 3: Cross multiply
    330,347.71x = 455,867.64 × 179,441.47
  4. Step 4: Simplify right side
    330,347.71x = 81,801,559,447.03
  5. Step 5: Solve for x
    x = 81,801,559,447.03/330,347.71
  6. Step 6: Final answer
    x = 247,622.60

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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.