Home / 309,936.51-427,718.70-173,980.26

Finding the Fourth Proportional to 309,936.51, 427,718.70 and 173,980.26

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Solution

The fourth proportional to 309,936.51, 427,718.70 and 173,980.26 is: 240,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,936.51 : 427,718.70 = 173,980.26 : x
  2. Step 2: Convert to fraction form
    309,936.51/427,718.70 = 173,980.26/x
  3. Step 3: Cross multiply
    309,936.51x = 427,718.70 × 173,980.26
  4. Step 4: Simplify right side
    309,936.51x = 74,414,610,632.86
  5. Step 5: Solve for x
    x = 74,414,610,632.86/309,936.51
  6. Step 6: Final answer
    x = 240,096.30

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1.5x scale

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.