Home / 380,919.59-525,665.50-208,847.11

Finding the Fourth Proportional to 380,919.59, 525,665.50 and 208,847.11

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Solution

The fourth proportional to 380,919.59, 525,665.50 and 208,847.11 is: 288,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,919.59 : 525,665.50 = 208,847.11 : x
  2. Step 2: Convert to fraction form
    380,919.59/525,665.50 = 208,847.11/x
  3. Step 3: Cross multiply
    380,919.59x = 525,665.50 × 208,847.11
  4. Step 4: Simplify right side
    380,919.59x = 109,783,719,651.05
  5. Step 5: Solve for x
    x = 109,783,719,651.05/380,919.59
  6. Step 6: Final answer
    x = 288,207.07

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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.