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Finding the Fourth Proportional to 285,486.46, 393,792.95 and 183,644.56

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Solution

The fourth proportional to 285,486.46, 393,792.95 and 183,644.56 is: 253,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,486.46 : 393,792.95 = 183,644.56 : x
  2. Step 2: Convert to fraction form
    285,486.46/393,792.95 = 183,644.56/x
  3. Step 3: Cross multiply
    285,486.46x = 393,792.95 × 183,644.56
  4. Step 4: Simplify right side
    285,486.46x = 72,317,930,146.66
  5. Step 5: Solve for x
    x = 72,317,930,146.66/285,486.46
  6. Step 6: Final answer
    x = 253,314.74

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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.