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Finding the Fourth Proportional to 313,099.74, 432,077.79 and 169,859.74

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Solution

The fourth proportional to 313,099.74, 432,077.79 and 169,859.74 is: 234,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,099.74 : 432,077.79 = 169,859.74 : x
  2. Step 2: Convert to fraction form
    313,099.74/432,077.79 = 169,859.74/x
  3. Step 3: Cross multiply
    313,099.74x = 432,077.79 × 169,859.74
  4. Step 4: Simplify right side
    313,099.74x = 73,392,622,651.32
  5. Step 5: Solve for x
    x = 73,392,622,651.32/313,099.74
  6. Step 6: Final answer
    x = 234,406.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.