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Finding the Fourth Proportional to 300,946.81, 451,615.86 and 130,335.20

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Solution

The fourth proportional to 300,946.81, 451,615.86 and 130,335.20 is: 195,587.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,946.81 : 451,615.86 = 130,335.20 : x
  2. Step 2: Convert to fraction form
    300,946.81/451,615.86 = 130,335.20/x
  3. Step 3: Cross multiply
    300,946.81x = 451,615.86 × 130,335.20
  4. Step 4: Simplify right side
    300,946.81x = 58,861,441,178.19
  5. Step 5: Solve for x
    x = 58,861,441,178.19/300,946.81
  6. Step 6: Final answer
    x = 195,587.52

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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.