Home / 445,235.13-667,686.65-178,905.51

Finding the Fourth Proportional to 445,235.13, 667,686.65 and 178,905.51

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Solution

The fourth proportional to 445,235.13, 667,686.65 and 178,905.51 is: 268,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,235.13 : 667,686.65 = 178,905.51 : x
  2. Step 2: Convert to fraction form
    445,235.13/667,686.65 = 178,905.51/x
  3. Step 3: Cross multiply
    445,235.13x = 667,686.65 × 178,905.51
  4. Step 4: Simplify right side
    445,235.13x = 119,452,819,743.91
  5. Step 5: Solve for x
    x = 119,452,819,743.91/445,235.13
  6. Step 6: Final answer
    x = 268,291.54

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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.