Home / 330,237.60-455,571.40-222,842.23

Finding the Fourth Proportional to 330,237.60, 455,571.40 and 222,842.23

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Solution

The fourth proportional to 330,237.60, 455,571.40 and 222,842.23 is: 307,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,237.60 : 455,571.40 = 222,842.23 : x
  2. Step 2: Convert to fraction form
    330,237.60/455,571.40 = 222,842.23/x
  3. Step 3: Cross multiply
    330,237.60x = 455,571.40 × 222,842.23
  4. Step 4: Simplify right side
    330,237.60x = 101,520,546,700.22
  5. Step 5: Solve for x
    x = 101,520,546,700.22/330,237.60
  6. Step 6: Final answer
    x = 307,416.68

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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.