Home / 250,002.78-345,012.63-136,825.50

Finding the Fourth Proportional to 250,002.78, 345,012.63 and 136,825.50

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Solution

The fourth proportional to 250,002.78, 345,012.63 and 136,825.50 is: 188,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,002.78 : 345,012.63 = 136,825.50 : x
  2. Step 2: Convert to fraction form
    250,002.78/345,012.63 = 136,825.50/x
  3. Step 3: Cross multiply
    250,002.78x = 345,012.63 × 136,825.50
  4. Step 4: Simplify right side
    250,002.78x = 47,206,525,606.07
  5. Step 5: Solve for x
    x = 47,206,525,606.07/250,002.78
  6. Step 6: Final answer
    x = 188,824.00

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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.