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Finding the Fourth Proportional to 277,206.60, 415,809.90 and 265,396.80

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Solution

The fourth proportional to 277,206.60, 415,809.90 and 265,396.80 is: 398,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,206.60 : 415,809.90 = 265,396.80 : x
  2. Step 2: Convert to fraction form
    277,206.60/415,809.90 = 265,396.80/x
  3. Step 3: Cross multiply
    277,206.60x = 415,809.90 × 265,396.80
  4. Step 4: Simplify right side
    277,206.60x = 110,354,616,868.32
  5. Step 5: Solve for x
    x = 110,354,616,868.32/277,206.60
  6. Step 6: Final answer
    x = 398,095.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.