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Finding the Fourth Proportional to 369,609.28, 510,059.43 and 208,463.32

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Solution

The fourth proportional to 369,609.28, 510,059.43 and 208,463.32 is: 287,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,609.28 : 510,059.43 = 208,463.32 : x
  2. Step 2: Convert to fraction form
    369,609.28/510,059.43 = 208,463.32/x
  3. Step 3: Cross multiply
    369,609.28x = 510,059.43 × 208,463.32
  4. Step 4: Simplify right side
    369,609.28x = 106,328,682,812.68
  5. Step 5: Solve for x
    x = 106,328,682,812.68/369,609.28
  6. Step 6: Final answer
    x = 287,678.61

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1.5x scale

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.