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Finding the Fourth Proportional to 478,755.36, 718,151.20 and 179,204.40

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Solution

The fourth proportional to 478,755.36, 718,151.20 and 179,204.40 is: 268,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,755.36 : 718,151.20 = 179,204.40 : x
  2. Step 2: Convert to fraction form
    478,755.36/718,151.20 = 179,204.40/x
  3. Step 3: Cross multiply
    478,755.36x = 718,151.20 × 179,204.40
  4. Step 4: Simplify right side
    478,755.36x = 128,695,854,905.28
  5. Step 5: Solve for x
    x = 128,695,854,905.28/478,755.36
  6. Step 6: Final answer
    x = 268,813.40

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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.