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Finding the Fourth Proportional to 239,830.96, 359,762 and 79,900.08

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Solution

The fourth proportional to 239,830.96, 359,762 and 79,900.08 is: 119,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,830.96 : 359,762 = 79,900.08 : x
  2. Step 2: Convert to fraction form
    239,830.96/359,762 = 79,900.08/x
  3. Step 3: Cross multiply
    239,830.96x = 359,762 × 79,900.08
  4. Step 4: Simplify right side
    239,830.96x = 28,745,012,580.96
  5. Step 5: Solve for x
    x = 28,745,012,580.96/239,830.96
  6. Step 6: Final answer
    x = 119,855.30

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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.