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Finding the Fourth Proportional to 305,996.40, 459,059.40 and 92,746.80

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Solution

The fourth proportional to 305,996.40, 459,059.40 and 92,746.80 is: 139,139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,996.40 : 459,059.40 = 92,746.80 : x
  2. Step 2: Convert to fraction form
    305,996.40/459,059.40 = 92,746.80/x
  3. Step 3: Cross multiply
    305,996.40x = 459,059.40 × 92,746.80
  4. Step 4: Simplify right side
    305,996.40x = 42,576,290,359.92
  5. Step 5: Solve for x
    x = 42,576,290,359.92/305,996.40
  6. Step 6: Final answer
    x = 139,139.84

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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.