Home / 380,844.72-525,557.64-211,077.36

Finding the Fourth Proportional to 380,844.72, 525,557.64 and 211,077.36

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Solution

The fourth proportional to 380,844.72, 525,557.64 and 211,077.36 is: 291,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,844.72 : 525,557.64 = 211,077.36 : x
  2. Step 2: Convert to fraction form
    380,844.72/525,557.64 = 211,077.36/x
  3. Step 3: Cross multiply
    380,844.72x = 525,557.64 × 211,077.36
  4. Step 4: Simplify right side
    380,844.72x = 110,933,319,179.03
  5. Step 5: Solve for x
    x = 110,933,319,179.03/380,844.72
  6. Step 6: Final answer
    x = 291,282.28

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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.