Home / 317,629.86-438,329.96-174,399.09

Finding the Fourth Proportional to 317,629.86, 438,329.96 and 174,399.09

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Solution

The fourth proportional to 317,629.86, 438,329.96 and 174,399.09 is: 240,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,629.86 : 438,329.96 = 174,399.09 : x
  2. Step 2: Convert to fraction form
    317,629.86/438,329.96 = 174,399.09/x
  3. Step 3: Cross multiply
    317,629.86x = 438,329.96 × 174,399.09
  4. Step 4: Simplify right side
    317,629.86x = 76,444,346,143.74
  5. Step 5: Solve for x
    x = 76,444,346,143.74/317,629.86
  6. Step 6: Final answer
    x = 240,671.16

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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.