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Finding the Fourth Proportional to 314,987.54, 434,691.77 and 171,755.44

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Solution

The fourth proportional to 314,987.54, 434,691.77 and 171,755.44 is: 237,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,987.54 : 434,691.77 = 171,755.44 : x
  2. Step 2: Convert to fraction form
    314,987.54/434,691.77 = 171,755.44/x
  3. Step 3: Cross multiply
    314,987.54x = 434,691.77 × 171,755.44
  4. Step 4: Simplify right side
    314,987.54x = 74,660,674,275.22
  5. Step 5: Solve for x
    x = 74,660,674,275.22/314,987.54
  6. Step 6: Final answer
    x = 237,027.39

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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.