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Finding the Fourth Proportional to 203,080.80, 304,621.20 and 201,914.40

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Solution

The fourth proportional to 203,080.80, 304,621.20 and 201,914.40 is: 302,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,080.80 : 304,621.20 = 201,914.40 : x
  2. Step 2: Convert to fraction form
    203,080.80/304,621.20 = 201,914.40/x
  3. Step 3: Cross multiply
    203,080.80x = 304,621.20 × 201,914.40
  4. Step 4: Simplify right side
    203,080.80x = 61,507,406,825.28
  5. Step 5: Solve for x
    x = 61,507,406,825.28/203,080.80
  6. Step 6: Final answer
    x = 302,871.60

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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.