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Finding the Fourth Proportional to 304,588, 420,320.91 and 168,627.88

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Solution

The fourth proportional to 304,588, 420,320.91 and 168,627.88 is: 232,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,588 : 420,320.91 = 168,627.88 : x
  2. Step 2: Convert to fraction form
    304,588/420,320.91 = 168,627.88/x
  3. Step 3: Cross multiply
    304,588x = 420,320.91 × 168,627.88
  4. Step 4: Simplify right side
    304,588x = 70,877,823,972.97
  5. Step 5: Solve for x
    x = 70,877,823,972.97/304,588
  6. Step 6: Final answer
    x = 232,700.64

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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.