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Finding the Fourth Proportional to 361,532.50, 542,487.87 and 262,510.66

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Solution

The fourth proportional to 361,532.50, 542,487.87 and 262,510.66 is: 393,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,532.50 : 542,487.87 = 262,510.66 : x
  2. Step 2: Convert to fraction form
    361,532.50/542,487.87 = 262,510.66/x
  3. Step 3: Cross multiply
    361,532.50x = 542,487.87 × 262,510.66
  4. Step 4: Simplify right side
    361,532.50x = 142,408,848,795.69
  5. Step 5: Solve for x
    x = 142,408,848,795.69/361,532.50
  6. Step 6: Final answer
    x = 393,903.31

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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.