Home / 380,819.29-525,530.63-211,064.35

Finding the Fourth Proportional to 380,819.29, 525,530.63 and 211,064.35

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Solution

The fourth proportional to 380,819.29, 525,530.63 and 211,064.35 is: 291,268.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,819.29 : 525,530.63 = 211,064.35 : x
  2. Step 2: Convert to fraction form
    380,819.29/525,530.63 = 211,064.35/x
  3. Step 3: Cross multiply
    380,819.29x = 525,530.63 × 211,064.35
  4. Step 4: Simplify right side
    380,819.29x = 110,920,780,826.04
  5. Step 5: Solve for x
    x = 110,920,780,826.04/380,819.29
  6. Step 6: Final answer
    x = 291,268.81

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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.