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Finding the Fourth Proportional to 304,383.35, 420,061.41 and 168,415.09

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Solution

The fourth proportional to 304,383.35, 420,061.41 and 168,415.09 is: 232,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,383.35 : 420,061.41 = 168,415.09 : x
  2. Step 2: Convert to fraction form
    304,383.35/420,061.41 = 168,415.09/x
  3. Step 3: Cross multiply
    304,383.35x = 420,061.41 × 168,415.09
  4. Step 4: Simplify right side
    304,383.35x = 70,744,677,228.29
  5. Step 5: Solve for x
    x = 70,744,677,228.29/304,383.35
  6. Step 6: Final answer
    x = 232,419.67

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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.