Home / 380,928.50-525,678.42-208,844.41

Finding the Fourth Proportional to 380,928.50, 525,678.42 and 208,844.41

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Solution

The fourth proportional to 380,928.50, 525,678.42 and 208,844.41 is: 288,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,928.50 : 525,678.42 = 208,844.41 : x
  2. Step 2: Convert to fraction form
    380,928.50/525,678.42 = 208,844.41/x
  3. Step 3: Cross multiply
    380,928.50x = 525,678.42 × 208,844.41
  4. Step 4: Simplify right side
    380,928.50x = 109,784,999,474.63
  5. Step 5: Solve for x
    x = 109,784,999,474.63/380,928.50
  6. Step 6: Final answer
    x = 288,203.69

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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.