Home / 281,442.72-388,355.40-224,227.17

Finding the Fourth Proportional to 281,442.72, 388,355.40 and 224,227.17

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Solution

The fourth proportional to 281,442.72, 388,355.40 and 224,227.17 is: 309,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,442.72 : 388,355.40 = 224,227.17 : x
  2. Step 2: Convert to fraction form
    281,442.72/388,355.40 = 224,227.17/x
  3. Step 3: Cross multiply
    281,442.72x = 388,355.40 × 224,227.17
  4. Step 4: Simplify right side
    281,442.72x = 87,079,832,296.22
  5. Step 5: Solve for x
    x = 87,079,832,296.22/281,442.72
  6. Step 6: Final answer
    x = 309,405.17

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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.