Home / 400,968.63-601,508.23-134,749.78

Finding the Fourth Proportional to 400,968.63, 601,508.23 and 134,749.78

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Solution

The fourth proportional to 400,968.63, 601,508.23 and 134,749.78 is: 202,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,968.63 : 601,508.23 = 134,749.78 : x
  2. Step 2: Convert to fraction form
    400,968.63/601,508.23 = 134,749.78/x
  3. Step 3: Cross multiply
    400,968.63x = 601,508.23 × 134,749.78
  4. Step 4: Simplify right side
    400,968.63x = 81,053,099,820.04
  5. Step 5: Solve for x
    x = 81,053,099,820.04/400,968.63
  6. Step 6: Final answer
    x = 202,143.24

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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.