Home / 281,532.04-388,514.30-154,212.20

Finding the Fourth Proportional to 281,532.04, 388,514.30 and 154,212.20

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Solution

The fourth proportional to 281,532.04, 388,514.30 and 154,212.20 is: 212,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,532.04 : 388,514.30 = 154,212.20 : x
  2. Step 2: Convert to fraction form
    281,532.04/388,514.30 = 154,212.20/x
  3. Step 3: Cross multiply
    281,532.04x = 388,514.30 × 154,212.20
  4. Step 4: Simplify right side
    281,532.04x = 59,913,644,934.46
  5. Step 5: Solve for x
    x = 59,913,644,934.46/281,532.04
  6. Step 6: Final answer
    x = 212,812.88

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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.