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Finding the Fourth Proportional to 356,328.36, 491,741.06 and 203,363.51

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Solution

The fourth proportional to 356,328.36, 491,741.06 and 203,363.51 is: 280,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,328.36 : 491,741.06 = 203,363.51 : x
  2. Step 2: Convert to fraction form
    356,328.36/491,741.06 = 203,363.51/x
  3. Step 3: Cross multiply
    356,328.36x = 491,741.06 × 203,363.51
  4. Step 4: Simplify right side
    356,328.36x = 100,002,184,497.20
  5. Step 5: Solve for x
    x = 100,002,184,497.20/356,328.36
  6. Step 6: Final answer
    x = 280,646.16

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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.