Home / 380,629.76-571,298.88-193,781.12

Finding the Fourth Proportional to 380,629.76, 571,298.88 and 193,781.12

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Solution

The fourth proportional to 380,629.76, 571,298.88 and 193,781.12 is: 290,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,629.76 : 571,298.88 = 193,781.12 : x
  2. Step 2: Convert to fraction form
    380,629.76/571,298.88 = 193,781.12/x
  3. Step 3: Cross multiply
    380,629.76x = 571,298.88 × 193,781.12
  4. Step 4: Simplify right side
    380,629.76x = 110,706,936,821.15
  5. Step 5: Solve for x
    x = 110,706,936,821.15/380,629.76
  6. Step 6: Final answer
    x = 290,852.03

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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.