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Finding the Fourth Proportional to 268,480.56, 370,493.69 and 147,621

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Solution

The fourth proportional to 268,480.56, 370,493.69 and 147,621 is: 203,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,480.56 : 370,493.69 = 147,621 : x
  2. Step 2: Convert to fraction form
    268,480.56/370,493.69 = 147,621/x
  3. Step 3: Cross multiply
    268,480.56x = 370,493.69 × 147,621
  4. Step 4: Simplify right side
    268,480.56x = 54,692,649,011.49
  5. Step 5: Solve for x
    x = 54,692,649,011.49/268,480.56
  6. Step 6: Final answer
    x = 203,711.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.