Home / 380,723.04-525,394.08-208,642.56

Finding the Fourth Proportional to 380,723.04, 525,394.08 and 208,642.56

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Solution

The fourth proportional to 380,723.04, 525,394.08 and 208,642.56 is: 287,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,723.04 : 525,394.08 = 208,642.56 : x
  2. Step 2: Convert to fraction form
    380,723.04/525,394.08 = 208,642.56/x
  3. Step 3: Cross multiply
    380,723.04x = 525,394.08 × 208,642.56
  4. Step 4: Simplify right side
    380,723.04x = 109,619,565,860.05
  5. Step 5: Solve for x
    x = 109,619,565,860.05/380,723.04
  6. Step 6: Final answer
    x = 287,924.70

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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.