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Finding the Fourth Proportional to 236,950.32, 326,990.64 and 129,520.32

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Solution

The fourth proportional to 236,950.32, 326,990.64 and 129,520.32 is: 178,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,950.32 : 326,990.64 = 129,520.32 : x
  2. Step 2: Convert to fraction form
    236,950.32/326,990.64 = 129,520.32/x
  3. Step 3: Cross multiply
    236,950.32x = 326,990.64 × 129,520.32
  4. Step 4: Simplify right side
    236,950.32x = 42,351,932,329.80
  5. Step 5: Solve for x
    x = 42,351,932,329.80/236,950.32
  6. Step 6: Final answer
    x = 178,737.60

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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.