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Finding the Fourth Proportional to 369,042.30, 553,215.15 and 200,313.90

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Solution

The fourth proportional to 369,042.30, 553,215.15 and 200,313.90 is: 300,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,042.30 : 553,215.15 = 200,313.90 : x
  2. Step 2: Convert to fraction form
    369,042.30/553,215.15 = 200,313.90/x
  3. Step 3: Cross multiply
    369,042.30x = 553,215.15 × 200,313.90
  4. Step 4: Simplify right side
    369,042.30x = 110,816,684,235.59
  5. Step 5: Solve for x
    x = 110,816,684,235.59/369,042.30
  6. Step 6: Final answer
    x = 300,281.79

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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.