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Finding the Fourth Proportional to 400,881.28, 601,300.80 and 134,647.24

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Solution

The fourth proportional to 400,881.28, 601,300.80 and 134,647.24 is: 201,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,881.28 : 601,300.80 = 134,647.24 : x
  2. Step 2: Convert to fraction form
    400,881.28/601,300.80 = 134,647.24/x
  3. Step 3: Cross multiply
    400,881.28x = 601,300.80 × 134,647.24
  4. Step 4: Simplify right side
    400,881.28x = 80,963,493,129.79
  5. Step 5: Solve for x
    x = 80,963,493,129.79/400,881.28
  6. Step 6: Final answer
    x = 201,963.77

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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.