Home / 208,670.02-312,794.73-82,261.35

Finding the Fourth Proportional to 208,670.02, 312,794.73 and 82,261.35

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Solution

The fourth proportional to 208,670.02, 312,794.73 and 82,261.35 is: 123,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,670.02 : 312,794.73 = 82,261.35 : x
  2. Step 2: Convert to fraction form
    208,670.02/312,794.73 = 82,261.35/x
  3. Step 3: Cross multiply
    208,670.02x = 312,794.73 × 82,261.35
  4. Step 4: Simplify right side
    208,670.02x = 25,730,916,762.69
  5. Step 5: Solve for x
    x = 25,730,916,762.69/208,670.02
  6. Step 6: Final answer
    x = 123,309.12

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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.