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Finding the Fourth Proportional to 304,278.06, 419,871.42 and 168,290.40

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Solution

The fourth proportional to 304,278.06, 419,871.42 and 168,290.40 is: 232,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,278.06 : 419,871.42 = 168,290.40 : x
  2. Step 2: Convert to fraction form
    304,278.06/419,871.42 = 168,290.40/x
  3. Step 3: Cross multiply
    304,278.06x = 419,871.42 × 168,290.40
  4. Step 4: Simplify right side
    304,278.06x = 70,660,329,220.37
  5. Step 5: Solve for x
    x = 70,660,329,220.37/304,278.06
  6. Step 6: Final answer
    x = 232,222.89

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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.