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Finding the Fourth Proportional to 343,992.33, 515,970.27 and 107,307.90

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Solution

The fourth proportional to 343,992.33, 515,970.27 and 107,307.90 is: 160,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,992.33 : 515,970.27 = 107,307.90 : x
  2. Step 2: Convert to fraction form
    343,992.33/515,970.27 = 107,307.90/x
  3. Step 3: Cross multiply
    343,992.33x = 515,970.27 × 107,307.90
  4. Step 4: Simplify right side
    343,992.33x = 55,367,686,136.13
  5. Step 5: Solve for x
    x = 55,367,686,136.13/343,992.33
  6. Step 6: Final answer
    x = 160,956.16

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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.