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Finding the Fourth Proportional to 239,607.72, 359,364.60 and 79,658.64

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Solution

The fourth proportional to 239,607.72, 359,364.60 and 79,658.64 is: 119,472.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,607.72 : 359,364.60 = 79,658.64 : x
  2. Step 2: Convert to fraction form
    239,607.72/359,364.60 = 79,658.64/x
  3. Step 3: Cross multiply
    239,607.72x = 359,364.60 × 79,658.64
  4. Step 4: Simplify right side
    239,607.72x = 28,626,495,300.14
  5. Step 5: Solve for x
    x = 28,626,495,300.14/239,607.72
  6. Step 6: Final answer
    x = 119,472.34

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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.