Home / 305,258.06-421,228.29-169,291.59

Finding the Fourth Proportional to 305,258.06, 421,228.29 and 169,291.59

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Solution

The fourth proportional to 305,258.06, 421,228.29 and 169,291.59 is: 233,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,258.06 : 421,228.29 = 169,291.59 : x
  2. Step 2: Convert to fraction form
    305,258.06/421,228.29 = 169,291.59/x
  3. Step 3: Cross multiply
    305,258.06x = 421,228.29 × 169,291.59
  4. Step 4: Simplify right side
    305,258.06x = 71,310,406,967.08
  5. Step 5: Solve for x
    x = 71,310,406,967.08/305,258.06
  6. Step 6: Final answer
    x = 233,606.96

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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.