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Finding the Fourth Proportional to 478,692.40, 718,162.92 and 179,196.52

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Solution

The fourth proportional to 478,692.40, 718,162.92 and 179,196.52 is: 268,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,692.40 : 718,162.92 = 179,196.52 : x
  2. Step 2: Convert to fraction form
    478,692.40/718,162.92 = 179,196.52/x
  3. Step 3: Cross multiply
    478,692.40x = 718,162.92 × 179,196.52
  4. Step 4: Simplify right side
    478,692.40x = 128,692,296,057.04
  5. Step 5: Solve for x
    x = 128,692,296,057.04/478,692.40
  6. Step 6: Final answer
    x = 268,841.32

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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.