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Finding the Fourth Proportional to 245,076.80, 367,288.08 and 130,990.88

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Solution

The fourth proportional to 245,076.80, 367,288.08 and 130,990.88 is: 196,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,076.80 : 367,288.08 = 130,990.88 : x
  2. Step 2: Convert to fraction form
    245,076.80/367,288.08 = 130,990.88/x
  3. Step 3: Cross multiply
    245,076.80x = 367,288.08 × 130,990.88
  4. Step 4: Simplify right side
    245,076.80x = 48,111,388,812.71
  5. Step 5: Solve for x
    x = 48,111,388,812.71/245,076.80
  6. Step 6: Final answer
    x = 196,311.48

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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.