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Finding the Fourth Proportional to 216,630.33, 324,842.93 and 126,699.06

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Solution

The fourth proportional to 216,630.33, 324,842.93 and 126,699.06 is: 189,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,630.33 : 324,842.93 = 126,699.06 : x
  2. Step 2: Convert to fraction form
    216,630.33/324,842.93 = 126,699.06/x
  3. Step 3: Cross multiply
    216,630.33x = 324,842.93 × 126,699.06
  4. Step 4: Simplify right side
    216,630.33x = 41,157,293,878.65
  5. Step 5: Solve for x
    x = 41,157,293,878.65/216,630.33
  6. Step 6: Final answer
    x = 189,988.60

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1.5x scale

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.