Home / 305,779.98-421,982.01-169,826.61

Finding the Fourth Proportional to 305,779.98, 421,982.01 and 169,826.61

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Solution

The fourth proportional to 305,779.98, 421,982.01 and 169,826.61 is: 234,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,779.98 : 421,982.01 = 169,826.61 : x
  2. Step 2: Convert to fraction form
    305,779.98/421,982.01 = 169,826.61/x
  3. Step 3: Cross multiply
    305,779.98x = 421,982.01 × 169,826.61
  4. Step 4: Simplify right side
    305,779.98x = 71,663,774,239.29
  5. Step 5: Solve for x
    x = 71,663,774,239.29/305,779.98
  6. Step 6: Final answer
    x = 234,363.85

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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.