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Finding the Fourth Proportional to 304,682.78, 420,457.08 and 168,713.82

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Solution

The fourth proportional to 304,682.78, 420,457.08 and 168,713.82 is: 232,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,682.78 : 420,457.08 = 168,713.82 : x
  2. Step 2: Convert to fraction form
    304,682.78/420,457.08 = 168,713.82/x
  3. Step 3: Cross multiply
    304,682.78x = 420,457.08 × 168,713.82
  4. Step 4: Simplify right side
    304,682.78x = 70,936,920,112.85
  5. Step 5: Solve for x
    x = 70,936,920,112.85/304,682.78
  6. Step 6: Final answer
    x = 232,822.21

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1.5x scale

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.