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Finding the Fourth Proportional to 190,846.60, 286,269.90 and 106,865.80

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Solution

The fourth proportional to 190,846.60, 286,269.90 and 106,865.80 is: 160,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,846.60 : 286,269.90 = 106,865.80 : x
  2. Step 2: Convert to fraction form
    190,846.60/286,269.90 = 106,865.80/x
  3. Step 3: Cross multiply
    190,846.60x = 286,269.90 × 106,865.80
  4. Step 4: Simplify right side
    190,846.60x = 30,592,461,879.42
  5. Step 5: Solve for x
    x = 30,592,461,879.42/190,846.60
  6. Step 6: Final answer
    x = 160,298.70

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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.