Home / 280,795.47-387,497.07-153,472.02

Finding the Fourth Proportional to 280,795.47, 387,497.07 and 153,472.02

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Solution

The fourth proportional to 280,795.47, 387,497.07 and 153,472.02 is: 211,791.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,795.47 : 387,497.07 = 153,472.02 : x
  2. Step 2: Convert to fraction form
    280,795.47/387,497.07 = 153,472.02/x
  3. Step 3: Cross multiply
    280,795.47x = 387,497.07 × 153,472.02
  4. Step 4: Simplify right side
    280,795.47x = 59,469,958,076.98
  5. Step 5: Solve for x
    x = 59,469,958,076.98/280,795.47
  6. Step 6: Final answer
    x = 211,791.02

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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.