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Finding the Fourth Proportional to 317,509.31, 476,014.28 and 217,365.98

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Solution

The fourth proportional to 317,509.31, 476,014.28 and 217,365.98 is: 325,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,509.31 : 476,014.28 = 217,365.98 : x
  2. Step 2: Convert to fraction form
    317,509.31/476,014.28 = 217,365.98/x
  3. Step 3: Cross multiply
    317,509.31x = 476,014.28 × 217,365.98
  4. Step 4: Simplify right side
    317,509.31x = 103,469,308,629.54
  5. Step 5: Solve for x
    x = 103,469,308,629.54/317,509.31
  6. Step 6: Final answer
    x = 325,878.03

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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.