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Finding the Fourth Proportional to 277,215.70, 415,045.95 and 269,439.70

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Solution

The fourth proportional to 277,215.70, 415,045.95 and 269,439.70 is: 403,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,215.70 : 415,045.95 = 269,439.70 : x
  2. Step 2: Convert to fraction form
    277,215.70/415,045.95 = 269,439.70/x
  3. Step 3: Cross multiply
    277,215.70x = 415,045.95 × 269,439.70
  4. Step 4: Simplify right side
    277,215.70x = 111,829,856,254.22
  5. Step 5: Solve for x
    x = 111,829,856,254.22/277,215.70
  6. Step 6: Final answer
    x = 403,403.76

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1.5x scale

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.