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Finding the Fourth Proportional to 345,992.96, 519,005.06 and 106,089.34

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Solution

The fourth proportional to 345,992.96, 519,005.06 and 106,089.34 is: 159,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,992.96 : 519,005.06 = 106,089.34 : x
  2. Step 2: Convert to fraction form
    345,992.96/519,005.06 = 106,089.34/x
  3. Step 3: Cross multiply
    345,992.96x = 519,005.06 × 106,089.34
  4. Step 4: Simplify right side
    345,992.96x = 55,060,904,272.06
  5. Step 5: Solve for x
    x = 55,060,904,272.06/345,992.96
  6. Step 6: Final answer
    x = 159,138.80

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1.5x scale

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.