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Finding the Fourth Proportional to 304,579.84, 420,325.76 and 170,443.52

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Solution

The fourth proportional to 304,579.84, 420,325.76 and 170,443.52 is: 235,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,579.84 : 420,325.76 = 170,443.52 : x
  2. Step 2: Convert to fraction form
    304,579.84/420,325.76 = 170,443.52/x
  3. Step 3: Cross multiply
    304,579.84x = 420,325.76 × 170,443.52
  4. Step 4: Simplify right side
    304,579.84x = 71,641,802,081.08
  5. Step 5: Solve for x
    x = 71,641,802,081.08/304,579.84
  6. Step 6: Final answer
    x = 235,215.18

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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.