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Finding the Fourth Proportional to 434,687.91, 651,961.88 and 119,071.05

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Solution

The fourth proportional to 434,687.91, 651,961.88 and 119,071.05 is: 178,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,687.91 : 651,961.88 = 119,071.05 : x
  2. Step 2: Convert to fraction form
    434,687.91/651,961.88 = 119,071.05/x
  3. Step 3: Cross multiply
    434,687.91x = 651,961.88 × 119,071.05
  4. Step 4: Simplify right side
    434,687.91x = 77,629,785,016.22
  5. Step 5: Solve for x
    x = 77,629,785,016.22/434,687.91
  6. Step 6: Final answer
    x = 178,587.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.