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Finding the Fourth Proportional to 235,292.18, 324,750.33 and 139,780.42

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Solution

The fourth proportional to 235,292.18, 324,750.33 and 139,780.42 is: 192,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,292.18 : 324,750.33 = 139,780.42 : x
  2. Step 2: Convert to fraction form
    235,292.18/324,750.33 = 139,780.42/x
  3. Step 3: Cross multiply
    235,292.18x = 324,750.33 × 139,780.42
  4. Step 4: Simplify right side
    235,292.18x = 45,393,736,710.66
  5. Step 5: Solve for x
    x = 45,393,736,710.66/235,292.18
  6. Step 6: Final answer
    x = 192,924.97

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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.