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Finding the Fourth Proportional to 277,416.52, 382,739.70 and 156,542.92

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Solution

The fourth proportional to 277,416.52, 382,739.70 and 156,542.92 is: 215,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,416.52 : 382,739.70 = 156,542.92 : x
  2. Step 2: Convert to fraction form
    277,416.52/382,739.70 = 156,542.92/x
  3. Step 3: Cross multiply
    277,416.52x = 382,739.70 × 156,542.92
  4. Step 4: Simplify right side
    277,416.52x = 59,915,190,237.92
  5. Step 5: Solve for x
    x = 59,915,190,237.92/277,416.52
  6. Step 6: Final answer
    x = 215,975.57

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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.