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Finding the Fourth Proportional to 442,989.30, 611,285.81 and 246,740.76

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Solution

The fourth proportional to 442,989.30, 611,285.81 and 246,740.76 is: 340,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,989.30 : 611,285.81 = 246,740.76 : x
  2. Step 2: Convert to fraction form
    442,989.30/611,285.81 = 246,740.76/x
  3. Step 3: Cross multiply
    442,989.30x = 611,285.81 × 246,740.76
  4. Step 4: Simplify right side
    442,989.30x = 150,829,122,904.15
  5. Step 5: Solve for x
    x = 150,829,122,904.15/442,989.30
  6. Step 6: Final answer
    x = 340,480.28

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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.