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Finding the Fourth Proportional to 402,118.82, 554,616.48 and 273,156.73

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Solution

The fourth proportional to 402,118.82, 554,616.48 and 273,156.73 is: 376,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,118.82 : 554,616.48 = 273,156.73 : x
  2. Step 2: Convert to fraction form
    402,118.82/554,616.48 = 273,156.73/x
  3. Step 3: Cross multiply
    402,118.82x = 554,616.48 × 273,156.73
  4. Step 4: Simplify right side
    402,118.82x = 151,497,224,080.91
  5. Step 5: Solve for x
    x = 151,497,224,080.91/402,118.82
  6. Step 6: Final answer
    x = 376,747.41

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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.