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Finding the Fourth Proportional to 169,670.20, 254,213.70 and 143,426.20

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Solution

The fourth proportional to 169,670.20, 254,213.70 and 143,426.20 is: 214,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,670.20 : 254,213.70 = 143,426.20 : x
  2. Step 2: Convert to fraction form
    169,670.20/254,213.70 = 143,426.20/x
  3. Step 3: Cross multiply
    169,670.20x = 254,213.70 × 143,426.20
  4. Step 4: Simplify right side
    169,670.20x = 36,460,904,978.94
  5. Step 5: Solve for x
    x = 36,460,904,978.94/169,670.20
  6. Step 6: Final answer
    x = 214,892.80

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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.