Home / 463,128.60-639,243.18-272,203.32

Finding the Fourth Proportional to 463,128.60, 639,243.18 and 272,203.32

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Solution

The fourth proportional to 463,128.60, 639,243.18 and 272,203.32 is: 375,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,128.60 : 639,243.18 = 272,203.32 : x
  2. Step 2: Convert to fraction form
    463,128.60/639,243.18 = 272,203.32/x
  3. Step 3: Cross multiply
    463,128.60x = 639,243.18 × 272,203.32
  4. Step 4: Simplify right side
    463,128.60x = 174,004,115,883.36
  5. Step 5: Solve for x
    x = 174,004,115,883.36/463,128.60
  6. Step 6: Final answer
    x = 375,714.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.