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Finding the Fourth Proportional to 212,597.53, 318,896.69 and 199,606.75

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Solution

The fourth proportional to 212,597.53, 318,896.69 and 199,606.75 is: 299,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,597.53 : 318,896.69 = 199,606.75 : x
  2. Step 2: Convert to fraction form
    212,597.53/318,896.69 = 199,606.75/x
  3. Step 3: Cross multiply
    212,597.53x = 318,896.69 × 199,606.75
  4. Step 4: Simplify right side
    212,597.53x = 63,653,931,876.66
  5. Step 5: Solve for x
    x = 63,653,931,876.66/212,597.53
  6. Step 6: Final answer
    x = 299,410.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.