Home / 317,467.32-438,124.56-209,850.72

Finding the Fourth Proportional to 317,467.32, 438,124.56 and 209,850.72

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Solution

The fourth proportional to 317,467.32, 438,124.56 and 209,850.72 is: 289,606.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,467.32 : 438,124.56 = 209,850.72 : x
  2. Step 2: Convert to fraction form
    317,467.32/438,124.56 = 209,850.72/x
  3. Step 3: Cross multiply
    317,467.32x = 438,124.56 × 209,850.72
  4. Step 4: Simplify right side
    317,467.32x = 91,940,754,365.68
  5. Step 5: Solve for x
    x = 91,940,754,365.68/317,467.32
  6. Step 6: Final answer
    x = 289,606.99

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1.5x scale

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.