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Finding the Fourth Proportional to 439,353.79, 659,030.72 and 158,805.43

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Solution

The fourth proportional to 439,353.79, 659,030.72 and 158,805.43 is: 238,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,353.79 : 659,030.72 = 158,805.43 : x
  2. Step 2: Convert to fraction form
    439,353.79/659,030.72 = 158,805.43/x
  3. Step 3: Cross multiply
    439,353.79x = 659,030.72 × 158,805.43
  4. Step 4: Simplify right side
    439,353.79x = 104,657,654,431.21
  5. Step 5: Solve for x
    x = 104,657,654,431.21/439,353.79
  6. Step 6: Final answer
    x = 238,208.15

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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.