Home / 305,272.40-421,268.60-169,305.24

Finding the Fourth Proportional to 305,272.40, 421,268.60 and 169,305.24

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Solution

The fourth proportional to 305,272.40, 421,268.60 and 169,305.24 is: 233,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,272.40 : 421,268.60 = 169,305.24 : x
  2. Step 2: Convert to fraction form
    305,272.40/421,268.60 = 169,305.24/x
  3. Step 3: Cross multiply
    305,272.40x = 421,268.60 × 169,305.24
  4. Step 4: Simplify right side
    305,272.40x = 71,322,980,108.51
  5. Step 5: Solve for x
    x = 71,322,980,108.51/305,272.40
  6. Step 6: Final answer
    x = 233,637.18

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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.