Home / 208,243.36-312,384.24-68,002.72

Finding the Fourth Proportional to 208,243.36, 312,384.24 and 68,002.72

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Solution

The fourth proportional to 208,243.36, 312,384.24 and 68,002.72 is: 102,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,243.36 : 312,384.24 = 68,002.72 : x
  2. Step 2: Convert to fraction form
    208,243.36/312,384.24 = 68,002.72/x
  3. Step 3: Cross multiply
    208,243.36x = 312,384.24 × 68,002.72
  4. Step 4: Simplify right side
    208,243.36x = 21,242,978,005.13
  5. Step 5: Solve for x
    x = 21,242,978,005.13/208,243.36
  6. Step 6: Final answer
    x = 102,010.35

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1.5x scale

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.