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Finding the Fourth Proportional to 304,955.19, 420,840.62 and 168,991.41

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Solution

The fourth proportional to 304,955.19, 420,840.62 and 168,991.41 is: 233,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,955.19 : 420,840.62 = 168,991.41 : x
  2. Step 2: Convert to fraction form
    304,955.19/420,840.62 = 168,991.41/x
  3. Step 3: Cross multiply
    304,955.19x = 420,840.62 × 168,991.41
  4. Step 4: Simplify right side
    304,955.19x = 71,118,449,759.07
  5. Step 5: Solve for x
    x = 71,118,449,759.07/304,955.19
  6. Step 6: Final answer
    x = 233,209.51

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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.