Home / 311,844.25-430,344.69-168,603.95

Finding the Fourth Proportional to 311,844.25, 430,344.69 and 168,603.95

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Solution

The fourth proportional to 311,844.25, 430,344.69 and 168,603.95 is: 232,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,844.25 : 430,344.69 = 168,603.95 : x
  2. Step 2: Convert to fraction form
    311,844.25/430,344.69 = 168,603.95/x
  3. Step 3: Cross multiply
    311,844.25x = 430,344.69 × 168,603.95
  4. Step 4: Simplify right side
    311,844.25x = 72,557,814,595.53
  5. Step 5: Solve for x
    x = 72,557,814,595.53/311,844.25
  6. Step 6: Final answer
    x = 232,673.25

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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.