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Finding the Fourth Proportional to 299,128.46, 448,384.88 and 130,617.27

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Solution

The fourth proportional to 299,128.46, 448,384.88 and 130,617.27 is: 195,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,128.46 : 448,384.88 = 130,617.27 : x
  2. Step 2: Convert to fraction form
    299,128.46/448,384.88 = 130,617.27/x
  3. Step 3: Cross multiply
    299,128.46x = 448,384.88 × 130,617.27
  4. Step 4: Simplify right side
    299,128.46x = 58,566,809,261.42
  5. Step 5: Solve for x
    x = 58,566,809,261.42/299,128.46
  6. Step 6: Final answer
    x = 195,791.50

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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.