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Finding the Fourth Proportional to 201,221.60, 301,832.40 and 121,505.45

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Solution

The fourth proportional to 201,221.60, 301,832.40 and 121,505.45 is: 182,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,221.60 : 301,832.40 = 121,505.45 : x
  2. Step 2: Convert to fraction form
    201,221.60/301,832.40 = 121,505.45/x
  3. Step 3: Cross multiply
    201,221.60x = 301,832.40 × 121,505.45
  4. Step 4: Simplify right side
    201,221.60x = 36,674,281,586.58
  5. Step 5: Solve for x
    x = 36,674,281,586.58/201,221.60
  6. Step 6: Final answer
    x = 182,258.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.