Home / 281,407.02-422,002.82-139,203.48

Finding the Fourth Proportional to 281,407.02, 422,002.82 and 139,203.48

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Solution

The fourth proportional to 281,407.02, 422,002.82 and 139,203.48 is: 208,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407.02 : 422,002.82 = 139,203.48 : x
  2. Step 2: Convert to fraction form
    281,407.02/422,002.82 = 139,203.48/x
  3. Step 3: Cross multiply
    281,407.02x = 422,002.82 × 139,203.48
  4. Step 4: Simplify right side
    281,407.02x = 58,744,261,113.81
  5. Step 5: Solve for x
    x = 58,744,261,113.81/281,407.02
  6. Step 6: Final answer
    x = 208,751.94

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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.