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Finding the Fourth Proportional to 317,022.93, 437,631.26 and 221,903.01

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Solution

The fourth proportional to 317,022.93, 437,631.26 and 221,903.01 is: 306,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,022.93 : 437,631.26 = 221,903.01 : x
  2. Step 2: Convert to fraction form
    317,022.93/437,631.26 = 221,903.01/x
  3. Step 3: Cross multiply
    317,022.93x = 437,631.26 × 221,903.01
  4. Step 4: Simplify right side
    317,022.93x = 97,111,692,754.58
  5. Step 5: Solve for x
    x = 97,111,692,754.58/317,022.93
  6. Step 6: Final answer
    x = 306,323.88

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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.