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Finding the Fourth Proportional to 203,870.10, 305,200.35 and 151,511.70

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Solution

The fourth proportional to 203,870.10, 305,200.35 and 151,511.70 is: 226,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,870.10 : 305,200.35 = 151,511.70 : x
  2. Step 2: Convert to fraction form
    203,870.10/305,200.35 = 151,511.70/x
  3. Step 3: Cross multiply
    203,870.10x = 305,200.35 × 151,511.70
  4. Step 4: Simplify right side
    203,870.10x = 46,241,423,869.10
  5. Step 5: Solve for x
    x = 46,241,423,869.10/203,870.10
  6. Step 6: Final answer
    x = 226,818.08

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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.