Home / 305,133.07-421,096.95-169,158.37

Finding the Fourth Proportional to 305,133.07, 421,096.95 and 169,158.37

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Solution

The fourth proportional to 305,133.07, 421,096.95 and 169,158.37 is: 233,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,133.07 : 421,096.95 = 169,158.37 : x
  2. Step 2: Convert to fraction form
    305,133.07/421,096.95 = 169,158.37/x
  3. Step 3: Cross multiply
    305,133.07x = 421,096.95 × 169,158.37
  4. Step 4: Simplify right side
    305,133.07x = 71,232,072,621.23
  5. Step 5: Solve for x
    x = 71,232,072,621.23/305,133.07
  6. Step 6: Final answer
    x = 233,445.93

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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.