Home / 305,333.04-421,359.76-169,362.48

Finding the Fourth Proportional to 305,333.04, 421,359.76 and 169,362.48

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Solution

The fourth proportional to 305,333.04, 421,359.76 and 169,362.48 is: 233,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,333.04 : 421,359.76 = 169,362.48 : x
  2. Step 2: Convert to fraction form
    305,333.04/421,359.76 = 169,362.48/x
  3. Step 3: Cross multiply
    305,333.04x = 421,359.76 × 169,362.48
  4. Step 4: Simplify right side
    305,333.04x = 71,362,533,925.80
  5. Step 5: Solve for x
    x = 71,362,533,925.80/305,333.04
  6. Step 6: Final answer
    x = 233,720.31

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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.