Home / 259,063.16-388,647.13-109,303.77

Finding the Fourth Proportional to 259,063.16, 388,647.13 and 109,303.77

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Solution

The fourth proportional to 259,063.16, 388,647.13 and 109,303.77 is: 163,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,063.16 : 388,647.13 = 109,303.77 : x
  2. Step 2: Convert to fraction form
    259,063.16/388,647.13 = 109,303.77/x
  3. Step 3: Cross multiply
    259,063.16x = 388,647.13 × 109,303.77
  4. Step 4: Simplify right side
    259,063.16x = 42,480,595,962.16
  5. Step 5: Solve for x
    x = 42,480,595,962.16/259,063.16
  6. Step 6: Final answer
    x = 163,977.76

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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.