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Finding the Fourth Proportional to 478,165.60, 659,873.10 and 263,313.28

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Solution

The fourth proportional to 478,165.60, 659,873.10 and 263,313.28 is: 363,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,165.60 : 659,873.10 = 263,313.28 : x
  2. Step 2: Convert to fraction form
    478,165.60/659,873.10 = 263,313.28/x
  3. Step 3: Cross multiply
    478,165.60x = 659,873.10 × 263,313.28
  4. Step 4: Simplify right side
    478,165.60x = 173,753,350,344.77
  5. Step 5: Solve for x
    x = 173,753,350,344.77/478,165.60
  6. Step 6: Final answer
    x = 363,374.84

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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.