Home / 317,128.14-437,866.44-204,147.72

Finding the Fourth Proportional to 317,128.14, 437,866.44 and 204,147.72

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Solution

The fourth proportional to 317,128.14, 437,866.44 and 204,147.72 is: 281,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,128.14 : 437,866.44 = 204,147.72 : x
  2. Step 2: Convert to fraction form
    317,128.14/437,866.44 = 204,147.72/x
  3. Step 3: Cross multiply
    317,128.14x = 437,866.44 × 204,147.72
  4. Step 4: Simplify right side
    317,128.14x = 89,389,435,390.52
  5. Step 5: Solve for x
    x = 89,389,435,390.52/317,128.14
  6. Step 6: Final answer
    x = 281,871.66

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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.