Home / 304,890.50-420,748.89-170,754.50

Finding the Fourth Proportional to 304,890.50, 420,748.89 and 170,754.50

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Solution

The fourth proportional to 304,890.50, 420,748.89 and 170,754.50 is: 235,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,890.50 : 420,748.89 = 170,754.50 : x
  2. Step 2: Convert to fraction form
    304,890.50/420,748.89 = 170,754.50/x
  3. Step 3: Cross multiply
    304,890.50x = 420,748.89 × 170,754.50
  4. Step 4: Simplify right side
    304,890.50x = 71,844,766,337.51
  5. Step 5: Solve for x
    x = 71,844,766,337.51/304,890.50
  6. Step 6: Final answer
    x = 235,641.21

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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.