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Finding the Fourth Proportional to 250,960.86, 346,326.57 and 137,790.90

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Solution

The fourth proportional to 250,960.86, 346,326.57 and 137,790.90 is: 190,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,960.86 : 346,326.57 = 137,790.90 : x
  2. Step 2: Convert to fraction form
    250,960.86/346,326.57 = 137,790.90/x
  3. Step 3: Cross multiply
    250,960.86x = 346,326.57 × 137,790.90
  4. Step 4: Simplify right side
    250,960.86x = 47,720,649,774.21
  5. Step 5: Solve for x
    x = 47,720,649,774.21/250,960.86
  6. Step 6: Final answer
    x = 190,151.76

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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.