Home / 205,904.40-308,827.80-65,677.20

Finding the Fourth Proportional to 205,904.40, 308,827.80 and 65,677.20

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Solution

The fourth proportional to 205,904.40, 308,827.80 and 65,677.20 is: 98,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,904.40 : 308,827.80 = 65,677.20 : x
  2. Step 2: Convert to fraction form
    205,904.40/308,827.80 = 65,677.20/x
  3. Step 3: Cross multiply
    205,904.40x = 308,827.80 × 65,677.20
  4. Step 4: Simplify right side
    205,904.40x = 20,282,945,186.16
  5. Step 5: Solve for x
    x = 20,282,945,186.16/205,904.40
  6. Step 6: Final answer
    x = 98,506.61

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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.