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Finding the Fourth Proportional to 314,801.52, 434,426.49 and 171,561.72

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Solution

The fourth proportional to 314,801.52, 434,426.49 and 171,561.72 is: 236,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,801.52 : 434,426.49 = 171,561.72 : x
  2. Step 2: Convert to fraction form
    314,801.52/434,426.49 = 171,561.72/x
  3. Step 3: Cross multiply
    314,801.52x = 434,426.49 × 171,561.72
  4. Step 4: Simplify right side
    314,801.52x = 74,530,955,837.96
  5. Step 5: Solve for x
    x = 74,530,955,837.96/314,801.52
  6. Step 6: Final answer
    x = 236,755.39

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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.