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Finding the Fourth Proportional to 555,021.40, 832,920.90 and 239,704.60

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Solution

The fourth proportional to 555,021.40, 832,920.90 and 239,704.60 is: 359,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,021.40 : 832,920.90 = 239,704.60 : x
  2. Step 2: Convert to fraction form
    555,021.40/832,920.90 = 239,704.60/x
  3. Step 3: Cross multiply
    555,021.40x = 832,920.90 × 239,704.60
  4. Step 4: Simplify right side
    555,021.40x = 199,654,971,166.14
  5. Step 5: Solve for x
    x = 199,654,971,166.14/555,021.40
  6. Step 6: Final answer
    x = 359,724.82

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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.