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Finding the Fourth Proportional to 368,749.77, 508,891.91 and 223,560.08

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Solution

The fourth proportional to 368,749.77, 508,891.91 and 223,560.08 is: 308,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,749.77 : 508,891.91 = 223,560.08 : x
  2. Step 2: Convert to fraction form
    368,749.77/508,891.91 = 223,560.08/x
  3. Step 3: Cross multiply
    368,749.77x = 508,891.91 × 223,560.08
  4. Step 4: Simplify right side
    368,749.77x = 113,767,918,477.08
  5. Step 5: Solve for x
    x = 113,767,918,477.08/368,749.77
  6. Step 6: Final answer
    x = 308,523.36

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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.