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Finding the Fourth Proportional to 314,490.96, 434,005.80 and 171,257.04

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Solution

The fourth proportional to 314,490.96, 434,005.80 and 171,257.04 is: 236,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,490.96 : 434,005.80 = 171,257.04 : x
  2. Step 2: Convert to fraction form
    314,490.96/434,005.80 = 171,257.04/x
  3. Step 3: Cross multiply
    314,490.96x = 434,005.80 × 171,257.04
  4. Step 4: Simplify right side
    314,490.96x = 74,326,548,650.83
  5. Step 5: Solve for x
    x = 74,326,548,650.83/314,490.96
  6. Step 6: Final answer
    x = 236,339.22

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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.