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Finding the Fourth Proportional to 143,049.60, 214,574.40 and 37,879.20

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Solution

The fourth proportional to 143,049.60, 214,574.40 and 37,879.20 is: 56,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,049.60 : 214,574.40 = 37,879.20 : x
  2. Step 2: Convert to fraction form
    143,049.60/214,574.40 = 37,879.20/x
  3. Step 3: Cross multiply
    143,049.60x = 214,574.40 × 37,879.20
  4. Step 4: Simplify right side
    143,049.60x = 8,127,906,612.48
  5. Step 5: Solve for x
    x = 8,127,906,612.48/143,049.60
  6. Step 6: Final answer
    x = 56,818.80

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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.