Home / 378,632.95-522,473.03-208,867.03

Finding the Fourth Proportional to 378,632.95, 522,473.03 and 208,867.03

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Solution

The fourth proportional to 378,632.95, 522,473.03 and 208,867.03 is: 288,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,632.95 : 522,473.03 = 208,867.03 : x
  2. Step 2: Convert to fraction form
    378,632.95/522,473.03 = 208,867.03/x
  3. Step 3: Cross multiply
    378,632.95x = 522,473.03 × 208,867.03
  4. Step 4: Simplify right side
    378,632.95x = 109,127,388,986.87
  5. Step 5: Solve for x
    x = 109,127,388,986.87/378,632.95
  6. Step 6: Final answer
    x = 288,214.19

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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.