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Finding the Fourth Proportional to 304,676.51, 420,448.41 and 168,707.57

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Solution

The fourth proportional to 304,676.51, 420,448.41 and 168,707.57 is: 232,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,676.51 : 420,448.41 = 168,707.57 : x
  2. Step 2: Convert to fraction form
    304,676.51/420,448.41 = 168,707.57/x
  3. Step 3: Cross multiply
    304,676.51x = 420,448.41 × 168,707.57
  4. Step 4: Simplify right side
    304,676.51x = 70,932,827,459.22
  5. Step 5: Solve for x
    x = 70,932,827,459.22/304,676.51
  6. Step 6: Final answer
    x = 232,813.58

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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.