Home / 268,971.39-370,833.66-220,392.72

Finding the Fourth Proportional to 268,971.39, 370,833.66 and 220,392.72

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Solution

The fourth proportional to 268,971.39, 370,833.66 and 220,392.72 is: 303,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,971.39 : 370,833.66 = 220,392.72 : x
  2. Step 2: Convert to fraction form
    268,971.39/370,833.66 = 220,392.72/x
  3. Step 3: Cross multiply
    268,971.39x = 370,833.66 × 220,392.72
  4. Step 4: Simplify right side
    268,971.39x = 81,729,038,994.96
  5. Step 5: Solve for x
    x = 81,729,038,994.96/268,971.39
  6. Step 6: Final answer
    x = 303,857.74

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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.