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Finding the Fourth Proportional to 310,099.80, 465,149.70 and 191,904.60

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Solution

The fourth proportional to 310,099.80, 465,149.70 and 191,904.60 is: 287,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,099.80 : 465,149.70 = 191,904.60 : x
  2. Step 2: Convert to fraction form
    310,099.80/465,149.70 = 191,904.60/x
  3. Step 3: Cross multiply
    310,099.80x = 465,149.70 × 191,904.60
  4. Step 4: Simplify right side
    310,099.80x = 89,264,367,118.62
  5. Step 5: Solve for x
    x = 89,264,367,118.62/310,099.80
  6. Step 6: Final answer
    x = 287,856.90

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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.