Home / 317,799.96-438,571.56-172,611.10

Finding the Fourth Proportional to 317,799.96, 438,571.56 and 172,611.10

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Solution

The fourth proportional to 317,799.96, 438,571.56 and 172,611.10 is: 238,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,799.96 : 438,571.56 = 172,611.10 : x
  2. Step 2: Convert to fraction form
    317,799.96/438,571.56 = 172,611.10/x
  3. Step 3: Cross multiply
    317,799.96x = 438,571.56 × 172,611.10
  4. Step 4: Simplify right side
    317,799.96x = 75,702,320,595.82
  5. Step 5: Solve for x
    x = 75,702,320,595.82/317,799.96
  6. Step 6: Final answer
    x = 238,207.46

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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.