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Finding the Fourth Proportional to 304,722, 420,503.40 and 168,755.40

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Solution

The fourth proportional to 304,722, 420,503.40 and 168,755.40 is: 232,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,722 : 420,503.40 = 168,755.40 : x
  2. Step 2: Convert to fraction form
    304,722/420,503.40 = 168,755.40/x
  3. Step 3: Cross multiply
    304,722x = 420,503.40 × 168,755.40
  4. Step 4: Simplify right side
    304,722x = 70,962,219,468.36
  5. Step 5: Solve for x
    x = 70,962,219,468.36/304,722
  6. Step 6: Final answer
    x = 232,875.27

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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.