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Finding the Fourth Proportional to 191,272.86, 286,919.51 and 58,142.88

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Solution

The fourth proportional to 191,272.86, 286,919.51 and 58,142.88 is: 87,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,272.86 : 286,919.51 = 58,142.88 : x
  2. Step 2: Convert to fraction form
    191,272.86/286,919.51 = 58,142.88/x
  3. Step 3: Cross multiply
    191,272.86x = 286,919.51 × 58,142.88
  4. Step 4: Simplify right side
    191,272.86x = 16,682,326,348.87
  5. Step 5: Solve for x
    x = 16,682,326,348.87/191,272.86
  6. Step 6: Final answer
    x = 87,217.43

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1.5x scale

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.