Home / 280,973.49-421,241.13-190,778.37

Finding the Fourth Proportional to 280,973.49, 421,241.13 and 190,778.37

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Solution

The fourth proportional to 280,973.49, 421,241.13 and 190,778.37 is: 286,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,973.49 : 421,241.13 = 190,778.37 : x
  2. Step 2: Convert to fraction form
    280,973.49/421,241.13 = 190,778.37/x
  3. Step 3: Cross multiply
    280,973.49x = 421,241.13 × 190,778.37
  4. Step 4: Simplify right side
    280,973.49x = 80,363,696,158.36
  5. Step 5: Solve for x
    x = 80,363,696,158.36/280,973.49
  6. Step 6: Final answer
    x = 286,018.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.