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Finding the Fourth Proportional to 277,178.60, 382,504.61 and 156,320.93

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Solution

The fourth proportional to 277,178.60, 382,504.61 and 156,320.93 is: 215,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,178.60 : 382,504.61 = 156,320.93 : x
  2. Step 2: Convert to fraction form
    277,178.60/382,504.61 = 156,320.93/x
  3. Step 3: Cross multiply
    277,178.60x = 382,504.61 × 156,320.93
  4. Step 4: Simplify right side
    277,178.60x = 59,793,477,711.55
  5. Step 5: Solve for x
    x = 59,793,477,711.55/277,178.60
  6. Step 6: Final answer
    x = 215,721.84

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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.