Home / 305,126.43-421,062.08-169,162.35

Finding the Fourth Proportional to 305,126.43, 421,062.08 and 169,162.35

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Solution

The fourth proportional to 305,126.43, 421,062.08 and 169,162.35 is: 233,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,126.43 : 421,062.08 = 169,162.35 : x
  2. Step 2: Convert to fraction form
    305,126.43/421,062.08 = 169,162.35/x
  3. Step 3: Cross multiply
    305,126.43x = 421,062.08 × 169,162.35
  4. Step 4: Simplify right side
    305,126.43x = 71,227,850,102.88
  5. Step 5: Solve for x
    x = 71,227,850,102.88/305,126.43
  6. Step 6: Final answer
    x = 233,437.17

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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.