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Finding the Fourth Proportional to 277,287.99, 382,657.55 and 156,428.97

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Solution

The fourth proportional to 277,287.99, 382,657.55 and 156,428.97 is: 215,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,287.99 : 382,657.55 = 156,428.97 : x
  2. Step 2: Convert to fraction form
    277,287.99/382,657.55 = 156,428.97/x
  3. Step 3: Cross multiply
    277,287.99x = 382,657.55 × 156,428.97
  4. Step 4: Simplify right side
    277,287.99x = 59,858,725,627.08
  5. Step 5: Solve for x
    x = 59,858,725,627.08/277,287.99
  6. Step 6: Final answer
    x = 215,872.05

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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.