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Finding the Fourth Proportional to 281,816.37, 388,898.51 and 160,955.15

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Solution

The fourth proportional to 281,816.37, 388,898.51 and 160,955.15 is: 222,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,816.37 : 388,898.51 = 160,955.15 : x
  2. Step 2: Convert to fraction form
    281,816.37/388,898.51 = 160,955.15/x
  3. Step 3: Cross multiply
    281,816.37x = 388,898.51 × 160,955.15
  4. Step 4: Simplify right side
    281,816.37x = 62,595,215,262.56
  5. Step 5: Solve for x
    x = 62,595,215,262.56/281,816.37
  6. Step 6: Final answer
    x = 222,113.48

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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.