Home / 305,295.12-421,328.79-169,342.02

Finding the Fourth Proportional to 305,295.12, 421,328.79 and 169,342.02

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Solution

The fourth proportional to 305,295.12, 421,328.79 and 169,342.02 is: 233,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,295.12 : 421,328.79 = 169,342.02 : x
  2. Step 2: Convert to fraction form
    305,295.12/421,328.79 = 169,342.02/x
  3. Step 3: Cross multiply
    305,295.12x = 421,328.79 × 169,342.02
  4. Step 4: Simplify right side
    305,295.12x = 71,348,668,382.76
  5. Step 5: Solve for x
    x = 71,348,668,382.76/305,295.12
  6. Step 6: Final answer
    x = 233,703.93

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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.