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Finding the Fourth Proportional to 239,323.34, 359,027.70 and 79,408.86

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Solution

The fourth proportional to 239,323.34, 359,027.70 and 79,408.86 is: 119,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,323.34 : 359,027.70 = 79,408.86 : x
  2. Step 2: Convert to fraction form
    239,323.34/359,027.70 = 79,408.86/x
  3. Step 3: Cross multiply
    239,323.34x = 359,027.70 × 79,408.86
  4. Step 4: Simplify right side
    239,323.34x = 28,509,980,365.42
  5. Step 5: Solve for x
    x = 28,509,980,365.42/239,323.34
  6. Step 6: Final answer
    x = 119,127.46

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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.