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Finding the Fourth Proportional to 314,801.55, 434,426.46 and 171,561.72

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Solution

The fourth proportional to 314,801.55, 434,426.46 and 171,561.72 is: 236,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,801.55 : 434,426.46 = 171,561.72 : x
  2. Step 2: Convert to fraction form
    314,801.55/434,426.46 = 171,561.72/x
  3. Step 3: Cross multiply
    314,801.55x = 434,426.46 × 171,561.72
  4. Step 4: Simplify right side
    314,801.55x = 74,530,950,691.11
  5. Step 5: Solve for x
    x = 74,530,950,691.11/314,801.55
  6. Step 6: Final answer
    x = 236,755.35

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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.