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Finding the Fourth Proportional to 304,569.29, 420,308.94 and 168,605.50

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Solution

The fourth proportional to 304,569.29, 420,308.94 and 168,605.50 is: 232,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,569.29 : 420,308.94 = 168,605.50 : x
  2. Step 2: Convert to fraction form
    304,569.29/420,308.94 = 168,605.50/x
  3. Step 3: Cross multiply
    304,569.29x = 420,308.94 × 168,605.50
  4. Step 4: Simplify right side
    304,569.29x = 70,866,398,561.66
  5. Step 5: Solve for x
    x = 70,866,398,561.66/304,569.29
  6. Step 6: Final answer
    x = 232,677.43

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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.