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Finding the Fourth Proportional to 610,578.88, 915,764.64 and 161,304.64

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Solution

The fourth proportional to 610,578.88, 915,764.64 and 161,304.64 is: 241,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,578.88 : 915,764.64 = 161,304.64 : x
  2. Step 2: Convert to fraction form
    610,578.88/915,764.64 = 161,304.64/x
  3. Step 3: Cross multiply
    610,578.88x = 915,764.64 × 161,304.64
  4. Step 4: Simplify right side
    610,578.88x = 147,717,085,579.93
  5. Step 5: Solve for x
    x = 147,717,085,579.93/610,578.88
  6. Step 6: Final answer
    x = 241,929.57

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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.