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Finding the Fourth Proportional to 239,817.81, 359,642.27 and 79,850.30

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Solution

The fourth proportional to 239,817.81, 359,642.27 and 79,850.30 is: 119,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,817.81 : 359,642.27 = 79,850.30 : x
  2. Step 2: Convert to fraction form
    239,817.81/359,642.27 = 79,850.30/x
  3. Step 3: Cross multiply
    239,817.81x = 359,642.27 × 79,850.30
  4. Step 4: Simplify right side
    239,817.81x = 28,717,544,700.47
  5. Step 5: Solve for x
    x = 28,717,544,700.47/239,817.81
  6. Step 6: Final answer
    x = 119,747.34

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1.5x scale

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.