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Finding the Fourth Proportional to 299,126.88, 448,684.56 and 77,505.12

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Solution

The fourth proportional to 299,126.88, 448,684.56 and 77,505.12 is: 116,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,126.88 : 448,684.56 = 77,505.12 : x
  2. Step 2: Convert to fraction form
    299,126.88/448,684.56 = 77,505.12/x
  3. Step 3: Cross multiply
    299,126.88x = 448,684.56 × 77,505.12
  4. Step 4: Simplify right side
    299,126.88x = 34,775,350,664.95
  5. Step 5: Solve for x
    x = 34,775,350,664.95/299,126.88
  6. Step 6: Final answer
    x = 116,256.19

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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.