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Finding the Fourth Proportional to 281,325, 388,409.56 and 251,058.30

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Solution

The fourth proportional to 281,325, 388,409.56 and 251,058.30 is: 346,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,325 : 388,409.56 = 251,058.30 : x
  2. Step 2: Convert to fraction form
    281,325/388,409.56 = 251,058.30/x
  3. Step 3: Cross multiply
    281,325x = 388,409.56 × 251,058.30
  4. Step 4: Simplify right side
    281,325x = 97,513,443,837.35
  5. Step 5: Solve for x
    x = 97,513,443,837.35/281,325
  6. Step 6: Final answer
    x = 346,622.03

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1.5x scale

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.