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Finding the Fourth Proportional to 439,381.81, 659,072.76 and 158,833.45

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Solution

The fourth proportional to 439,381.81, 659,072.76 and 158,833.45 is: 238,250.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,381.81 : 659,072.76 = 158,833.45 : x
  2. Step 2: Convert to fraction form
    439,381.81/659,072.76 = 158,833.45/x
  3. Step 3: Cross multiply
    439,381.81x = 659,072.76 × 158,833.45
  4. Step 4: Simplify right side
    439,381.81x = 104,682,800,271.82
  5. Step 5: Solve for x
    x = 104,682,800,271.82/439,381.81
  6. Step 6: Final answer
    x = 238,250.19

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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.