Home / 343,524.38-515,136.15-140,981.58

Finding the Fourth Proportional to 343,524.38, 515,136.15 and 140,981.58

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Solution

The fourth proportional to 343,524.38, 515,136.15 and 140,981.58 is: 211,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,524.38 : 515,136.15 = 140,981.58 : x
  2. Step 2: Convert to fraction form
    343,524.38/515,136.15 = 140,981.58/x
  3. Step 3: Cross multiply
    343,524.38x = 515,136.15 × 140,981.58
  4. Step 4: Simplify right side
    343,524.38x = 72,624,708,342.12
  5. Step 5: Solve for x
    x = 72,624,708,342.12/343,524.38
  6. Step 6: Final answer
    x = 211,410.64

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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.