Home / 380,725.72-525,393.66-210,958.36

Finding the Fourth Proportional to 380,725.72, 525,393.66 and 210,958.36

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Solution

The fourth proportional to 380,725.72, 525,393.66 and 210,958.36 is: 291,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,725.72 : 525,393.66 = 210,958.36 : x
  2. Step 2: Convert to fraction form
    380,725.72/525,393.66 = 210,958.36/x
  3. Step 3: Cross multiply
    380,725.72x = 525,393.66 × 210,958.36
  4. Step 4: Simplify right side
    380,725.72x = 110,836,184,868.00
  5. Step 5: Solve for x
    x = 110,836,184,868.00/380,725.72
  6. Step 6: Final answer
    x = 291,118.20

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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.