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Finding the Fourth Proportional to 312,148.55, 430,766.98 and 183,060.70

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Solution

The fourth proportional to 312,148.55, 430,766.98 and 183,060.70 is: 252,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,148.55 : 430,766.98 = 183,060.70 : x
  2. Step 2: Convert to fraction form
    312,148.55/430,766.98 = 183,060.70/x
  3. Step 3: Cross multiply
    312,148.55x = 430,766.98 × 183,060.70
  4. Step 4: Simplify right side
    312,148.55x = 78,856,505,083.68
  5. Step 5: Solve for x
    x = 78,856,505,083.68/312,148.55
  6. Step 6: Final answer
    x = 252,624.93

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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.