Home / 305,239.06-421,272.93-169,303.24

Finding the Fourth Proportional to 305,239.06, 421,272.93 and 169,303.24

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Solution

The fourth proportional to 305,239.06, 421,272.93 and 169,303.24 is: 233,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,239.06 : 421,272.93 = 169,303.24 : x
  2. Step 2: Convert to fraction form
    305,239.06/421,272.93 = 169,303.24/x
  3. Step 3: Cross multiply
    305,239.06x = 421,272.93 × 169,303.24
  4. Step 4: Simplify right side
    305,239.06x = 71,322,871,973.29
  5. Step 5: Solve for x
    x = 71,322,871,973.29/305,239.06
  6. Step 6: Final answer
    x = 233,662.34

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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.