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Finding the Fourth Proportional to 343,393.24, 515,019.70 and 130,087.62

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Solution

The fourth proportional to 343,393.24, 515,019.70 and 130,087.62 is: 195,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,393.24 : 515,019.70 = 130,087.62 : x
  2. Step 2: Convert to fraction form
    343,393.24/515,019.70 = 130,087.62/x
  3. Step 3: Cross multiply
    343,393.24x = 515,019.70 × 130,087.62
  4. Step 4: Simplify right side
    343,393.24x = 66,997,687,026.11
  5. Step 5: Solve for x
    x = 66,997,687,026.11/343,393.24
  6. Step 6: Final answer
    x = 195,104.85

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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.