Home / 213,799.66-320,810.15-155,119.68

Finding the Fourth Proportional to 213,799.66, 320,810.15 and 155,119.68

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Solution

The fourth proportional to 213,799.66, 320,810.15 and 155,119.68 is: 232,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,799.66 : 320,810.15 = 155,119.68 : x
  2. Step 2: Convert to fraction form
    213,799.66/320,810.15 = 155,119.68/x
  3. Step 3: Cross multiply
    213,799.66x = 320,810.15 × 155,119.68
  4. Step 4: Simplify right side
    213,799.66x = 49,763,968,196.55
  5. Step 5: Solve for x
    x = 49,763,968,196.55/213,799.66
  6. Step 6: Final answer
    x = 232,759.81

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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.