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Finding the Fourth Proportional to 478,633.52, 718,074.81 and 179,137.64

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Solution

The fourth proportional to 478,633.52, 718,074.81 and 179,137.64 is: 268,753.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,633.52 : 718,074.81 = 179,137.64 : x
  2. Step 2: Convert to fraction form
    478,633.52/718,074.81 = 179,137.64/x
  3. Step 3: Cross multiply
    478,633.52x = 718,074.81 × 179,137.64
  4. Step 4: Simplify right side
    478,633.52x = 128,634,226,806.85
  5. Step 5: Solve for x
    x = 128,634,226,806.85/478,633.52
  6. Step 6: Final answer
    x = 268,753.07

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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.