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Finding the Fourth Proportional to 356,298.72, 491,700.12 and 203,333.82

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Solution

The fourth proportional to 356,298.72, 491,700.12 and 203,333.82 is: 280,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,298.72 : 491,700.12 = 203,333.82 : x
  2. Step 2: Convert to fraction form
    356,298.72/491,700.12 = 203,333.82/x
  3. Step 3: Cross multiply
    356,298.72x = 491,700.12 × 203,333.82
  4. Step 4: Simplify right side
    356,298.72x = 99,979,263,694.06
  5. Step 5: Solve for x
    x = 99,979,263,694.06/356,298.72
  6. Step 6: Final answer
    x = 280,605.17

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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.