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Finding the Fourth Proportional to 245,093.20, 367,639.80 and 161,112.40

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Solution

The fourth proportional to 245,093.20, 367,639.80 and 161,112.40 is: 241,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,093.20 : 367,639.80 = 161,112.40 : x
  2. Step 2: Convert to fraction form
    245,093.20/367,639.80 = 161,112.40/x
  3. Step 3: Cross multiply
    245,093.20x = 367,639.80 × 161,112.40
  4. Step 4: Simplify right side
    245,093.20x = 59,231,330,513.52
  5. Step 5: Solve for x
    x = 59,231,330,513.52/245,093.20
  6. Step 6: Final answer
    x = 241,668.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.