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Finding the Fourth Proportional to 281,619, 388,538.54 and 160,673.40

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Solution

The fourth proportional to 281,619, 388,538.54 and 160,673.40 is: 221,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,619 : 388,538.54 = 160,673.40 : x
  2. Step 2: Convert to fraction form
    281,619/388,538.54 = 160,673.40/x
  3. Step 3: Cross multiply
    281,619x = 388,538.54 × 160,673.40
  4. Step 4: Simplify right side
    281,619x = 62,427,808,252.84
  5. Step 5: Solve for x
    x = 62,427,808,252.84/281,619
  6. Step 6: Final answer
    x = 221,674.70

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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.