Home / 218,164.12-301,059.38-121,367.50

Finding the Fourth Proportional to 218,164.12, 301,059.38 and 121,367.50

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Solution

The fourth proportional to 218,164.12, 301,059.38 and 121,367.50 is: 167,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,164.12 : 301,059.38 = 121,367.50 : x
  2. Step 2: Convert to fraction form
    218,164.12/301,059.38 = 121,367.50/x
  3. Step 3: Cross multiply
    218,164.12x = 301,059.38 × 121,367.50
  4. Step 4: Simplify right side
    218,164.12x = 36,538,823,852.92
  5. Step 5: Solve for x
    x = 36,538,823,852.92/218,164.12
  6. Step 6: Final answer
    x = 167,483.20

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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.