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Finding the Fourth Proportional to 286,636.08, 429,963.84 and 76,274.22

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Solution

The fourth proportional to 286,636.08, 429,963.84 and 76,274.22 is: 114,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,636.08 : 429,963.84 = 76,274.22 : x
  2. Step 2: Convert to fraction form
    286,636.08/429,963.84 = 76,274.22/x
  3. Step 3: Cross multiply
    286,636.08x = 429,963.84 × 76,274.22
  4. Step 4: Simplify right side
    286,636.08x = 32,795,156,524.20
  5. Step 5: Solve for x
    x = 32,795,156,524.20/286,636.08
  6. Step 6: Final answer
    x = 114,413.92

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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.