Home / 288,001.11-431,679.77-107,913.28

Finding the Fourth Proportional to 288,001.11, 431,679.77 and 107,913.28

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Solution

The fourth proportional to 288,001.11, 431,679.77 and 107,913.28 is: 161,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,001.11 : 431,679.77 = 107,913.28 : x
  2. Step 2: Convert to fraction form
    288,001.11/431,679.77 = 107,913.28/x
  3. Step 3: Cross multiply
    288,001.11x = 431,679.77 × 107,913.28
  4. Step 4: Simplify right side
    288,001.11x = 46,583,978,271.58
  5. Step 5: Solve for x
    x = 46,583,978,271.58/288,001.11
  6. Step 6: Final answer
    x = 161,749.30

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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.