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Finding the Fourth Proportional to 356,439.51, 491,886.45 and 213,233.22

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Solution

The fourth proportional to 356,439.51, 491,886.45 and 213,233.22 is: 294,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,439.51 : 491,886.45 = 213,233.22 : x
  2. Step 2: Convert to fraction form
    356,439.51/491,886.45 = 213,233.22/x
  3. Step 3: Cross multiply
    356,439.51x = 491,886.45 × 213,233.22
  4. Step 4: Simplify right side
    356,439.51x = 104,886,531,607.87
  5. Step 5: Solve for x
    x = 104,886,531,607.87/356,439.51
  6. Step 6: Final answer
    x = 294,261.80

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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.