Home / 380,786.48-525,488.40-211,023.44

Finding the Fourth Proportional to 380,786.48, 525,488.40 and 211,023.44

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Solution

The fourth proportional to 380,786.48, 525,488.40 and 211,023.44 is: 291,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,786.48 : 525,488.40 = 211,023.44 : x
  2. Step 2: Convert to fraction form
    380,786.48/525,488.40 = 211,023.44/x
  3. Step 3: Cross multiply
    380,786.48x = 525,488.40 × 211,023.44
  4. Step 4: Simplify right side
    380,786.48x = 110,890,369,848.10
  5. Step 5: Solve for x
    x = 110,890,369,848.10/380,786.48
  6. Step 6: Final answer
    x = 291,214.04

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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.