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Finding the Fourth Proportional to 286,680.16, 427,601.56 and 248,943.48

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Solution

The fourth proportional to 286,680.16, 427,601.56 and 248,943.48 is: 371,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,680.16 : 427,601.56 = 248,943.48 : x
  2. Step 2: Convert to fraction form
    286,680.16/427,601.56 = 248,943.48/x
  3. Step 3: Cross multiply
    286,680.16x = 427,601.56 × 248,943.48
  4. Step 4: Simplify right side
    286,680.16x = 106,448,617,940.58
  5. Step 5: Solve for x
    x = 106,448,617,940.58/286,680.16
  6. Step 6: Final answer
    x = 371,314.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.