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Finding the Fourth Proportional to 277,080.84, 382,363.90 and 156,221.07

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Solution

The fourth proportional to 277,080.84, 382,363.90 and 156,221.07 is: 215,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,080.84 : 382,363.90 = 156,221.07 : x
  2. Step 2: Convert to fraction form
    277,080.84/382,363.90 = 156,221.07/x
  3. Step 3: Cross multiply
    277,080.84x = 382,363.90 × 156,221.07
  4. Step 4: Simplify right side
    277,080.84x = 59,733,297,587.37
  5. Step 5: Solve for x
    x = 59,733,297,587.37/277,080.84
  6. Step 6: Final answer
    x = 215,580.76

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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.