Home / 281,722.03-388,774.16-154,397.32

Finding the Fourth Proportional to 281,722.03, 388,774.16 and 154,397.32

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Solution

The fourth proportional to 281,722.03, 388,774.16 and 154,397.32 is: 213,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,722.03 : 388,774.16 = 154,397.32 : x
  2. Step 2: Convert to fraction form
    281,722.03/388,774.16 = 154,397.32/x
  3. Step 3: Cross multiply
    281,722.03x = 388,774.16 × 154,397.32
  4. Step 4: Simplify right side
    281,722.03x = 60,025,688,389.25
  5. Step 5: Solve for x
    x = 60,025,688,389.25/281,722.03
  6. Step 6: Final answer
    x = 213,067.07

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1.5x scale

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.