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Finding the Fourth Proportional to 356,352.24, 491,775.12 and 203,411.28

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Solution

The fourth proportional to 356,352.24, 491,775.12 and 203,411.28 is: 280,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,352.24 : 491,775.12 = 203,411.28 : x
  2. Step 2: Convert to fraction form
    356,352.24/491,775.12 = 203,411.28/x
  3. Step 3: Cross multiply
    356,352.24x = 491,775.12 × 203,411.28
  4. Step 4: Simplify right side
    356,352.24x = 100,032,606,631.35
  5. Step 5: Solve for x
    x = 100,032,606,631.35/356,352.24
  6. Step 6: Final answer
    x = 280,712.72

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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.