Home / 258,837.18-388,075.64-114,664.70

Finding the Fourth Proportional to 258,837.18, 388,075.64 and 114,664.70

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Solution

The fourth proportional to 258,837.18, 388,075.64 and 114,664.70 is: 171,917.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,837.18 : 388,075.64 = 114,664.70 : x
  2. Step 2: Convert to fraction form
    258,837.18/388,075.64 = 114,664.70/x
  3. Step 3: Cross multiply
    258,837.18x = 388,075.64 × 114,664.70
  4. Step 4: Simplify right side
    258,837.18x = 44,498,574,324.21
  5. Step 5: Solve for x
    x = 44,498,574,324.21/258,837.18
  6. Step 6: Final answer
    x = 171,917.24

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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.