Home / 281,327.42-388,232.90-154,014.86

Finding the Fourth Proportional to 281,327.42, 388,232.90 and 154,014.86

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Solution

The fourth proportional to 281,327.42, 388,232.90 and 154,014.86 is: 212,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,327.42 : 388,232.90 = 154,014.86 : x
  2. Step 2: Convert to fraction form
    281,327.42/388,232.90 = 154,014.86/x
  3. Step 3: Cross multiply
    281,327.42x = 388,232.90 × 154,014.86
  4. Step 4: Simplify right side
    281,327.42x = 59,793,635,740.89
  5. Step 5: Solve for x
    x = 59,793,635,740.89/281,327.42
  6. Step 6: Final answer
    x = 212,541.09

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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.