Home / 218,917.96-302,106.90-118,316.04

Finding the Fourth Proportional to 218,917.96, 302,106.90 and 118,316.04

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Solution

The fourth proportional to 218,917.96, 302,106.90 and 118,316.04 is: 163,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,917.96 : 302,106.90 = 118,316.04 : x
  2. Step 2: Convert to fraction form
    218,917.96/302,106.90 = 118,316.04/x
  3. Step 3: Cross multiply
    218,917.96x = 302,106.90 × 118,316.04
  4. Step 4: Simplify right side
    218,917.96x = 35,744,092,064.68
  5. Step 5: Solve for x
    x = 35,744,092,064.68/218,917.96
  6. Step 6: Final answer
    x = 163,276.20

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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.