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Finding the Fourth Proportional to 356,672.58, 492,192.88 and 213,511.56

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Solution

The fourth proportional to 356,672.58, 492,192.88 and 213,511.56 is: 294,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,672.58 : 492,192.88 = 213,511.56 : x
  2. Step 2: Convert to fraction form
    356,672.58/492,192.88 = 213,511.56/x
  3. Step 3: Cross multiply
    356,672.58x = 492,192.88 × 213,511.56
  4. Step 4: Simplify right side
    356,672.58x = 105,088,869,629.69
  5. Step 5: Solve for x
    x = 105,088,869,629.69/356,672.58
  6. Step 6: Final answer
    x = 294,636.81

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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.