Home / 305,585.12-421,699.56-169,612.04

Finding the Fourth Proportional to 305,585.12, 421,699.56 and 169,612.04

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Solution

The fourth proportional to 305,585.12, 421,699.56 and 169,612.04 is: 234,060.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,585.12 : 421,699.56 = 169,612.04 : x
  2. Step 2: Convert to fraction form
    305,585.12/421,699.56 = 169,612.04/x
  3. Step 3: Cross multiply
    305,585.12x = 421,699.56 × 169,612.04
  4. Step 4: Simplify right side
    305,585.12x = 71,525,322,638.70
  5. Step 5: Solve for x
    x = 71,525,322,638.70/305,585.12
  6. Step 6: Final answer
    x = 234,060.23

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1.5x scale

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.