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Finding the Fourth Proportional to 147,220.77, 220,831.22 and 47,380.95

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Solution

The fourth proportional to 147,220.77, 220,831.22 and 47,380.95 is: 71,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,220.77 : 220,831.22 = 47,380.95 : x
  2. Step 2: Convert to fraction form
    147,220.77/220,831.22 = 47,380.95/x
  3. Step 3: Cross multiply
    147,220.77x = 220,831.22 × 47,380.95
  4. Step 4: Simplify right side
    147,220.77x = 10,463,193,178.34
  5. Step 5: Solve for x
    x = 10,463,193,178.34/147,220.77
  6. Step 6: Final answer
    x = 71,071.45

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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.