Home / 288,835.13-433,355.30-128,896.52

Finding the Fourth Proportional to 288,835.13, 433,355.30 and 128,896.52

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Solution

The fourth proportional to 288,835.13, 433,355.30 and 128,896.52 is: 193,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,835.13 : 433,355.30 = 128,896.52 : x
  2. Step 2: Convert to fraction form
    288,835.13/433,355.30 = 128,896.52/x
  3. Step 3: Cross multiply
    288,835.13x = 433,355.30 × 128,896.52
  4. Step 4: Simplify right side
    288,835.13x = 55,857,987,765.66
  5. Step 5: Solve for x
    x = 55,857,987,765.66/288,835.13
  6. Step 6: Final answer
    x = 193,390.56

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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.