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Finding the Fourth Proportional to 298,785.64, 448,177.22 and 121,291.14

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Solution

The fourth proportional to 298,785.64, 448,177.22 and 121,291.14 is: 181,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,785.64 : 448,177.22 = 121,291.14 : x
  2. Step 2: Convert to fraction form
    298,785.64/448,177.22 = 121,291.14/x
  3. Step 3: Cross multiply
    298,785.64x = 448,177.22 × 121,291.14
  4. Step 4: Simplify right side
    298,785.64x = 54,359,925,935.83
  5. Step 5: Solve for x
    x = 54,359,925,935.83/298,785.64
  6. Step 6: Final answer
    x = 181,936.21

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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.