Home / 380,837.43-525,556.08-211,071.69

Finding the Fourth Proportional to 380,837.43, 525,556.08 and 211,071.69

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Solution

The fourth proportional to 380,837.43, 525,556.08 and 211,071.69 is: 291,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,837.43 : 525,556.08 = 211,071.69 : x
  2. Step 2: Convert to fraction form
    380,837.43/525,556.08 = 211,071.69/x
  3. Step 3: Cross multiply
    380,837.43x = 525,556.08 × 211,071.69
  4. Step 4: Simplify right side
    380,837.43x = 110,930,009,995.38
  5. Step 5: Solve for x
    x = 110,930,009,995.38/380,837.43
  6. Step 6: Final answer
    x = 291,279.17

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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.