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Finding the Fourth Proportional to 286,371.42, 429,523.77 and 76,025.70

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Solution

The fourth proportional to 286,371.42, 429,523.77 and 76,025.70 is: 114,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,371.42 : 429,523.77 = 76,025.70 : x
  2. Step 2: Convert to fraction form
    286,371.42/429,523.77 = 76,025.70/x
  3. Step 3: Cross multiply
    286,371.42x = 429,523.77 × 76,025.70
  4. Step 4: Simplify right side
    286,371.42x = 32,654,845,280.89
  5. Step 5: Solve for x
    x = 32,654,845,280.89/286,371.42
  6. Step 6: Final answer
    x = 114,029.69

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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.