Home / 309,811.20-427,631.04-182,527.92

Finding the Fourth Proportional to 309,811.20, 427,631.04 and 182,527.92

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Solution

The fourth proportional to 309,811.20, 427,631.04 and 182,527.92 is: 251,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,811.20 : 427,631.04 = 182,527.92 : x
  2. Step 2: Convert to fraction form
    309,811.20/427,631.04 = 182,527.92/x
  3. Step 3: Cross multiply
    309,811.20x = 427,631.04 × 182,527.92
  4. Step 4: Simplify right side
    309,811.20x = 78,054,604,258.64
  5. Step 5: Solve for x
    x = 78,054,604,258.64/309,811.20
  6. Step 6: Final answer
    x = 251,942.49

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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.