Home / 218,822.89-301,975.56-118,220.89

Finding the Fourth Proportional to 218,822.89, 301,975.56 and 118,220.89

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Solution

The fourth proportional to 218,822.89, 301,975.56 and 118,220.89 is: 163,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.89 : 301,975.56 = 118,220.89 : x
  2. Step 2: Convert to fraction form
    218,822.89/301,975.56 = 118,220.89/x
  3. Step 3: Cross multiply
    218,822.89x = 301,975.56 × 118,220.89
  4. Step 4: Simplify right side
    218,822.89x = 35,699,819,461.45
  5. Step 5: Solve for x
    x = 35,699,819,461.45/218,822.89
  6. Step 6: Final answer
    x = 163,144.81

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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.