Home / 405,081.18-608,003.09-205,544.76

Finding the Fourth Proportional to 405,081.18, 608,003.09 and 205,544.76

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Solution

The fourth proportional to 405,081.18, 608,003.09 and 205,544.76 is: 308,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,081.18 : 608,003.09 = 205,544.76 : x
  2. Step 2: Convert to fraction form
    405,081.18/608,003.09 = 205,544.76/x
  3. Step 3: Cross multiply
    405,081.18x = 608,003.09 × 205,544.76
  4. Step 4: Simplify right side
    405,081.18x = 124,971,851,228.30
  5. Step 5: Solve for x
    x = 124,971,851,228.30/405,081.18
  6. Step 6: Final answer
    x = 308,510.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.