Home / 317,213.12-475,944.29-139,595.58

Finding the Fourth Proportional to 317,213.12, 475,944.29 and 139,595.58

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Solution

The fourth proportional to 317,213.12, 475,944.29 and 139,595.58 is: 209,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,213.12 : 475,944.29 = 139,595.58 : x
  2. Step 2: Convert to fraction form
    317,213.12/475,944.29 = 139,595.58/x
  3. Step 3: Cross multiply
    317,213.12x = 475,944.29 × 139,595.58
  4. Step 4: Simplify right side
    317,213.12x = 66,439,718,512.26
  5. Step 5: Solve for x
    x = 66,439,718,512.26/317,213.12
  6. Step 6: Final answer
    x = 209,448.21

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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.