Home / 287,401.36-396,476.52-223,300.48

Finding the Fourth Proportional to 287,401.36, 396,476.52 and 223,300.48

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Solution

The fourth proportional to 287,401.36, 396,476.52 and 223,300.48 is: 308,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,401.36 : 396,476.52 = 223,300.48 : x
  2. Step 2: Convert to fraction form
    287,401.36/396,476.52 = 223,300.48/x
  3. Step 3: Cross multiply
    287,401.36x = 396,476.52 × 223,300.48
  4. Step 4: Simplify right side
    287,401.36x = 88,533,397,224.73
  5. Step 5: Solve for x
    x = 88,533,397,224.73/287,401.36
  6. Step 6: Final answer
    x = 308,047.94

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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.