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Finding the Fourth Proportional to 281,589.48, 388,593.60 and 154,265.52

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Solution

The fourth proportional to 281,589.48, 388,593.60 and 154,265.52 is: 212,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,589.48 : 388,593.60 = 154,265.52 : x
  2. Step 2: Convert to fraction form
    281,589.48/388,593.60 = 154,265.52/x
  3. Step 3: Cross multiply
    281,589.48x = 388,593.60 × 154,265.52
  4. Step 4: Simplify right side
    281,589.48x = 59,946,593,772.67
  5. Step 5: Solve for x
    x = 59,946,593,772.67/281,589.48
  6. Step 6: Final answer
    x = 212,886.48

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1.5x scale

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.