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Finding the Fourth Proportional to 277,309.73, 382,678.61 and 156,449.40

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Solution

The fourth proportional to 277,309.73, 382,678.61 and 156,449.40 is: 215,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,309.73 : 382,678.61 = 156,449.40 : x
  2. Step 2: Convert to fraction form
    277,309.73/382,678.61 = 156,449.40/x
  3. Step 3: Cross multiply
    277,309.73x = 382,678.61 × 156,449.40
  4. Step 4: Simplify right side
    277,309.73x = 59,869,838,145.09
  5. Step 5: Solve for x
    x = 59,869,838,145.09/277,309.73
  6. Step 6: Final answer
    x = 215,895.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.