Home / 205,688.85-308,564.06-65,478.93

Finding the Fourth Proportional to 205,688.85, 308,564.06 and 65,478.93

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Solution

The fourth proportional to 205,688.85, 308,564.06 and 65,478.93 is: 98,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,688.85 : 308,564.06 = 65,478.93 : x
  2. Step 2: Convert to fraction form
    205,688.85/308,564.06 = 65,478.93/x
  3. Step 3: Cross multiply
    205,688.85x = 308,564.06 × 65,478.93
  4. Step 4: Simplify right side
    205,688.85x = 20,204,444,485.26
  5. Step 5: Solve for x
    x = 20,204,444,485.26/205,688.85
  6. Step 6: Final answer
    x = 98,228.20

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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.