Home / 288,320.30-432,318.47-119,727.20

Finding the Fourth Proportional to 288,320.30, 432,318.47 and 119,727.20

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Solution

The fourth proportional to 288,320.30, 432,318.47 and 119,727.20 is: 179,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,320.30 : 432,318.47 = 119,727.20 : x
  2. Step 2: Convert to fraction form
    288,320.30/432,318.47 = 119,727.20/x
  3. Step 3: Cross multiply
    288,320.30x = 432,318.47 × 119,727.20
  4. Step 4: Simplify right side
    288,320.30x = 51,760,279,322.75
  5. Step 5: Solve for x
    x = 51,760,279,322.75/288,320.30
  6. Step 6: Final answer
    x = 179,523.54

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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.