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Finding the Fourth Proportional to 259,350.50, 357,903.70 and 140,118.50

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Solution

The fourth proportional to 259,350.50, 357,903.70 and 140,118.50 is: 193,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,350.50 : 357,903.70 = 140,118.50 : x
  2. Step 2: Convert to fraction form
    259,350.50/357,903.70 = 140,118.50/x
  3. Step 3: Cross multiply
    259,350.50x = 357,903.70 × 140,118.50
  4. Step 4: Simplify right side
    259,350.50x = 50,148,929,588.45
  5. Step 5: Solve for x
    x = 50,148,929,588.45/259,350.50
  6. Step 6: Final answer
    x = 193,363.54

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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.