Home / 380,754.33-525,441.07-208,679.13

Finding the Fourth Proportional to 380,754.33, 525,441.07 and 208,679.13

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Solution

The fourth proportional to 380,754.33, 525,441.07 and 208,679.13 is: 287,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,754.33 : 525,441.07 = 208,679.13 : x
  2. Step 2: Convert to fraction form
    380,754.33/525,441.07 = 208,679.13/x
  3. Step 3: Cross multiply
    380,754.33x = 525,441.07 × 208,679.13
  4. Step 4: Simplify right side
    380,754.33x = 109,648,585,353.87
  5. Step 5: Solve for x
    x = 109,648,585,353.87/380,754.33
  6. Step 6: Final answer
    x = 287,977.25

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1.5x scale

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.