Home / 388,699.22-536,381.33-214,261.79

Finding the Fourth Proportional to 388,699.22, 536,381.33 and 214,261.79

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Solution

The fourth proportional to 388,699.22, 536,381.33 and 214,261.79 is: 295,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,699.22 : 536,381.33 = 214,261.79 : x
  2. Step 2: Convert to fraction form
    388,699.22/536,381.33 = 214,261.79/x
  3. Step 3: Cross multiply
    388,699.22x = 536,381.33 × 214,261.79
  4. Step 4: Simplify right side
    388,699.22x = 114,926,022,246.35
  5. Step 5: Solve for x
    x = 114,926,022,246.35/388,699.22
  6. Step 6: Final answer
    x = 295,668.26

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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.