Home / 205,740.32-283,290.77-180,103.21

Finding the Fourth Proportional to 205,740.32, 283,290.77 and 180,103.21

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Solution

The fourth proportional to 205,740.32, 283,290.77 and 180,103.21 is: 247,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,740.32 : 283,290.77 = 180,103.21 : x
  2. Step 2: Convert to fraction form
    205,740.32/283,290.77 = 180,103.21/x
  3. Step 3: Cross multiply
    205,740.32x = 283,290.77 × 180,103.21
  4. Step 4: Simplify right side
    205,740.32x = 51,021,576,782.40
  5. Step 5: Solve for x
    x = 51,021,576,782.40/205,740.32
  6. Step 6: Final answer
    x = 247,990.18

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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.