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Finding the Fourth Proportional to 235,336.74, 324,722.43 and 139,866.90

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Solution

The fourth proportional to 235,336.74, 324,722.43 and 139,866.90 is: 192,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,336.74 : 324,722.43 = 139,866.90 : x
  2. Step 2: Convert to fraction form
    235,336.74/324,722.43 = 139,866.90/x
  3. Step 3: Cross multiply
    235,336.74x = 324,722.43 × 139,866.90
  4. Step 4: Simplify right side
    235,336.74x = 45,417,919,644.57
  5. Step 5: Solve for x
    x = 45,417,919,644.57/235,336.74
  6. Step 6: Final answer
    x = 192,991.20

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1.5x scale

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.