Home / 218,929.75-302,122.91-118,327.75

Finding the Fourth Proportional to 218,929.75, 302,122.91 and 118,327.75

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Solution

The fourth proportional to 218,929.75, 302,122.91 and 118,327.75 is: 163,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,929.75 : 302,122.91 = 118,327.75 : x
  2. Step 2: Convert to fraction form
    218,929.75/302,122.91 = 118,327.75/x
  3. Step 3: Cross multiply
    218,929.75x = 302,122.91 × 118,327.75
  4. Step 4: Simplify right side
    218,929.75x = 35,749,523,704.26
  5. Step 5: Solve for x
    x = 35,749,523,704.26/218,929.75
  6. Step 6: Final answer
    x = 163,292.22

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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.