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Finding the Fourth Proportional to 299,255.76, 448,495.68 and 121,556.40

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Solution

The fourth proportional to 299,255.76, 448,495.68 and 121,556.40 is: 182,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,255.76 : 448,495.68 = 121,556.40 : x
  2. Step 2: Convert to fraction form
    299,255.76/448,495.68 = 121,556.40/x
  3. Step 3: Cross multiply
    299,255.76x = 448,495.68 × 121,556.40
  4. Step 4: Simplify right side
    299,255.76x = 54,517,520,276.35
  5. Step 5: Solve for x
    x = 54,517,520,276.35/299,255.76
  6. Step 6: Final answer
    x = 182,177.01

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1.5x scale

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.