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Finding the Fourth Proportional to 355,832.94, 491,000.96 and 212,562.57

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Solution

The fourth proportional to 355,832.94, 491,000.96 and 212,562.57 is: 293,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,832.94 : 491,000.96 = 212,562.57 : x
  2. Step 2: Convert to fraction form
    355,832.94/491,000.96 = 212,562.57/x
  3. Step 3: Cross multiply
    355,832.94x = 491,000.96 × 212,562.57
  4. Step 4: Simplify right side
    355,832.94x = 104,368,424,867.25
  5. Step 5: Solve for x
    x = 104,368,424,867.25/355,832.94
  6. Step 6: Final answer
    x = 293,307.37

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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.