Home / 281,650.04-388,677.06-154,330.20

Finding the Fourth Proportional to 281,650.04, 388,677.06 and 154,330.20

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Solution

The fourth proportional to 281,650.04, 388,677.06 and 154,330.20 is: 212,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,650.04 : 388,677.06 = 154,330.20 : x
  2. Step 2: Convert to fraction form
    281,650.04/388,677.06 = 154,330.20/x
  3. Step 3: Cross multiply
    281,650.04x = 388,677.06 × 154,330.20
  4. Step 4: Simplify right side
    281,650.04x = 59,984,608,405.21
  5. Step 5: Solve for x
    x = 59,984,608,405.21/281,650.04
  6. Step 6: Final answer
    x = 212,975.68

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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.