Home / 281,758.08-388,825.34-154,433.28

Finding the Fourth Proportional to 281,758.08, 388,825.34 and 154,433.28

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Solution

The fourth proportional to 281,758.08, 388,825.34 and 154,433.28 is: 213,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,758.08 : 388,825.34 = 154,433.28 : x
  2. Step 2: Convert to fraction form
    281,758.08/388,825.34 = 154,433.28/x
  3. Step 3: Cross multiply
    281,758.08x = 388,825.34 × 154,433.28
  4. Step 4: Simplify right side
    281,758.08x = 60,047,572,603.32
  5. Step 5: Solve for x
    x = 60,047,572,603.32/281,758.08
  6. Step 6: Final answer
    x = 213,117.48

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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.