Home / 298,784.64-448,175.72-121,290.14

Finding the Fourth Proportional to 298,784.64, 448,175.72 and 121,290.14

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Solution

The fourth proportional to 298,784.64, 448,175.72 and 121,290.14 is: 181,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,784.64 : 448,175.72 = 121,290.14 : x
  2. Step 2: Convert to fraction form
    298,784.64/448,175.72 = 121,290.14/x
  3. Step 3: Cross multiply
    298,784.64x = 448,175.72 × 121,290.14
  4. Step 4: Simplify right side
    298,784.64x = 54,359,295,823.40
  5. Step 5: Solve for x
    x = 54,359,295,823.40/298,784.64
  6. Step 6: Final answer
    x = 181,934.71

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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.