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Finding the Fourth Proportional to 187,221.20, 280,831.80 and 185,252.90

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Solution

The fourth proportional to 187,221.20, 280,831.80 and 185,252.90 is: 277,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,221.20 : 280,831.80 = 185,252.90 : x
  2. Step 2: Convert to fraction form
    187,221.20/280,831.80 = 185,252.90/x
  3. Step 3: Cross multiply
    187,221.20x = 280,831.80 × 185,252.90
  4. Step 4: Simplify right side
    187,221.20x = 52,024,905,362.22
  5. Step 5: Solve for x
    x = 52,024,905,362.22/187,221.20
  6. Step 6: Final answer
    x = 277,879.35

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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.