Home / 217,968.78-300,787.32-127,333.14

Finding the Fourth Proportional to 217,968.78, 300,787.32 and 127,333.14

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Solution

The fourth proportional to 217,968.78, 300,787.32 and 127,333.14 is: 175,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,968.78 : 300,787.32 = 127,333.14 : x
  2. Step 2: Convert to fraction form
    217,968.78/300,787.32 = 127,333.14/x
  3. Step 3: Cross multiply
    217,968.78x = 300,787.32 × 127,333.14
  4. Step 4: Simplify right side
    217,968.78x = 38,300,193,927.78
  5. Step 5: Solve for x
    x = 38,300,193,927.78/217,968.78
  6. Step 6: Final answer
    x = 175,714.13

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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.