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Finding the Fourth Proportional to 218,713.75, 301,824.99 and 118,111.75

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Solution

The fourth proportional to 218,713.75, 301,824.99 and 118,111.75 is: 162,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,713.75 : 301,824.99 = 118,111.75 : x
  2. Step 2: Convert to fraction form
    218,713.75/301,824.99 = 118,111.75/x
  3. Step 3: Cross multiply
    218,713.75x = 301,824.99 × 118,111.75
  4. Step 4: Simplify right side
    218,713.75x = 35,649,077,762.63
  5. Step 5: Solve for x
    x = 35,649,077,762.63/218,713.75
  6. Step 6: Final answer
    x = 162,994.22

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1.5x scale

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.