Home / 380,261.03-570,952.26-212,109.89

Finding the Fourth Proportional to 380,261.03, 570,952.26 and 212,109.89

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Solution

The fourth proportional to 380,261.03, 570,952.26 and 212,109.89 is: 318,477.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,261.03 : 570,952.26 = 212,109.89 : x
  2. Step 2: Convert to fraction form
    380,261.03/570,952.26 = 212,109.89/x
  3. Step 3: Cross multiply
    380,261.03x = 570,952.26 × 212,109.89
  4. Step 4: Simplify right side
    380,261.03x = 121,104,623,021.51
  5. Step 5: Solve for x
    x = 121,104,623,021.51/380,261.03
  6. Step 6: Final answer
    x = 318,477.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.