Home / 354,914.50-489,707.16-225,806.35

Finding the Fourth Proportional to 354,914.50, 489,707.16 and 225,806.35

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Solution

The fourth proportional to 354,914.50, 489,707.16 and 225,806.35 is: 311,565.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,914.50 : 489,707.16 = 225,806.35 : x
  2. Step 2: Convert to fraction form
    354,914.50/489,707.16 = 225,806.35/x
  3. Step 3: Cross multiply
    354,914.50x = 489,707.16 × 225,806.35
  4. Step 4: Simplify right side
    354,914.50x = 110,578,984,297.42
  5. Step 5: Solve for x
    x = 110,578,984,297.42/354,914.50
  6. Step 6: Final answer
    x = 311,565.14

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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.