Home / 309,185.60-426,579.28-173,201.18

Finding the Fourth Proportional to 309,185.60, 426,579.28 and 173,201.18

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Solution

The fourth proportional to 309,185.60, 426,579.28 and 173,201.18 is: 238,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,185.60 : 426,579.28 = 173,201.18 : x
  2. Step 2: Convert to fraction form
    309,185.60/426,579.28 = 173,201.18/x
  3. Step 3: Cross multiply
    309,185.60x = 426,579.28 × 173,201.18
  4. Step 4: Simplify right side
    309,185.60x = 73,884,032,093.65
  5. Step 5: Solve for x
    x = 73,884,032,093.65/309,185.60
  6. Step 6: Final answer
    x = 238,963.37

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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.