Home / 258,820.56-388,230.81-118,579.17

Finding the Fourth Proportional to 258,820.56, 388,230.81 and 118,579.17

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Solution

The fourth proportional to 258,820.56, 388,230.81 and 118,579.17 is: 177,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,820.56 : 388,230.81 = 118,579.17 : x
  2. Step 2: Convert to fraction form
    258,820.56/388,230.81 = 118,579.17/x
  3. Step 3: Cross multiply
    258,820.56x = 388,230.81 × 118,579.17
  4. Step 4: Simplify right side
    258,820.56x = 46,036,087,218.23
  5. Step 5: Solve for x
    x = 46,036,087,218.23/258,820.56
  6. Step 6: Final answer
    x = 177,868.74

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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.