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Finding the Fourth Proportional to 286,580, 429,870 and 111,476

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Solution

The fourth proportional to 286,580, 429,870 and 111,476 is: 167,214

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,580 : 429,870 = 111,476 : x
  2. Step 2: Convert to fraction form
    286,580/429,870 = 111,476/x
  3. Step 3: Cross multiply
    286,580x = 429,870 × 111,476
  4. Step 4: Simplify right side
    286,580x = 47,920,188,120
  5. Step 5: Solve for x
    x = 47,920,188,120/286,580
  6. Step 6: Final answer
    x = 167,214

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.