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Finding the Fourth Proportional to 201,185.55, 301,779 and 74,853.63

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Solution

The fourth proportional to 201,185.55, 301,779 and 74,853.63 is: 112,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,185.55 : 301,779 = 74,853.63 : x
  2. Step 2: Convert to fraction form
    201,185.55/301,779 = 74,853.63/x
  3. Step 3: Cross multiply
    201,185.55x = 301,779 × 74,853.63
  4. Step 4: Simplify right side
    201,185.55x = 22,589,253,607.77
  5. Step 5: Solve for x
    x = 22,589,253,607.77/201,185.55
  6. Step 6: Final answer
    x = 112,280.70

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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.