Home / 281,516.69-388,530.45-160,630.27

Finding the Fourth Proportional to 281,516.69, 388,530.45 and 160,630.27

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Solution

The fourth proportional to 281,516.69, 388,530.45 and 160,630.27 is: 221,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,516.69 : 388,530.45 = 160,630.27 : x
  2. Step 2: Convert to fraction form
    281,516.69/388,530.45 = 160,630.27/x
  3. Step 3: Cross multiply
    281,516.69x = 388,530.45 × 160,630.27
  4. Step 4: Simplify right side
    281,516.69x = 62,409,749,144.07
  5. Step 5: Solve for x
    x = 62,409,749,144.07/281,516.69
  6. Step 6: Final answer
    x = 221,691.12

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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.