Home / 463,112.60-639,221.10-272,187.32

Finding the Fourth Proportional to 463,112.60, 639,221.10 and 272,187.32

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Solution

The fourth proportional to 463,112.60, 639,221.10 and 272,187.32 is: 375,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,112.60 : 639,221.10 = 272,187.32 : x
  2. Step 2: Convert to fraction form
    463,112.60/639,221.10 = 272,187.32/x
  3. Step 3: Cross multiply
    463,112.60x = 639,221.10 × 272,187.32
  4. Step 4: Simplify right side
    463,112.60x = 173,987,878,096.45
  5. Step 5: Solve for x
    x = 173,987,878,096.45/463,112.60
  6. Step 6: Final answer
    x = 375,692.39

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1.5x scale

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.