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Finding the Fourth Proportional to 169,401.60, 254,102.40 and 156,571.20

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Solution

The fourth proportional to 169,401.60, 254,102.40 and 156,571.20 is: 234,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,401.60 : 254,102.40 = 156,571.20 : x
  2. Step 2: Convert to fraction form
    169,401.60/254,102.40 = 156,571.20/x
  3. Step 3: Cross multiply
    169,401.60x = 254,102.40 × 156,571.20
  4. Step 4: Simplify right side
    169,401.60x = 39,785,117,690.88
  5. Step 5: Solve for x
    x = 39,785,117,690.88/169,401.60
  6. Step 6: Final answer
    x = 234,856.80

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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.