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Finding the Fourth Proportional to 274,653.60, 385,068 and 274,653.60

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Solution

The fourth proportional to 274,653.60, 385,068 and 274,653.60 is: 385,068

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,653.60 : 385,068 = 274,653.60 : x
  2. Step 2: Convert to fraction form
    274,653.60/385,068 = 274,653.60/x
  3. Step 3: Cross multiply
    274,653.60x = 385,068 × 274,653.60
  4. Step 4: Simplify right side
    274,653.60x = 105,760,312,444.80
  5. Step 5: Solve for x
    x = 105,760,312,444.80/274,653.60
  6. Step 6: Final answer
    x = 385,068

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.