Home / 218,822.40-301,974.84-118,220.40

Finding the Fourth Proportional to 218,822.40, 301,974.84 and 118,220.40

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Solution

The fourth proportional to 218,822.40, 301,974.84 and 118,220.40 is: 163,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.40 : 301,974.84 = 118,220.40 : x
  2. Step 2: Convert to fraction form
    218,822.40/301,974.84 = 118,220.40/x
  3. Step 3: Cross multiply
    218,822.40x = 301,974.84 × 118,220.40
  4. Step 4: Simplify right side
    218,822.40x = 35,699,586,374.74
  5. Step 5: Solve for x
    x = 35,699,586,374.74/218,822.40
  6. Step 6: Final answer
    x = 163,144.11

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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.