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Finding the Fourth Proportional to 478,158.55, 659,858.81 and 263,298.11

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Solution

The fourth proportional to 478,158.55, 659,858.81 and 263,298.11 is: 363,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,158.55 : 659,858.81 = 263,298.11 : x
  2. Step 2: Convert to fraction form
    478,158.55/659,858.81 = 263,298.11/x
  3. Step 3: Cross multiply
    478,158.55x = 659,858.81 × 263,298.11
  4. Step 4: Simplify right side
    478,158.55x = 173,739,577,539.85
  5. Step 5: Solve for x
    x = 173,739,577,539.85/478,158.55
  6. Step 6: Final answer
    x = 363,351.40

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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.