Home / 275,549.31-380,280.02-154,698.53

Finding the Fourth Proportional to 275,549.31, 380,280.02 and 154,698.53

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Solution

The fourth proportional to 275,549.31, 380,280.02 and 154,698.53 is: 213,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,549.31 : 380,280.02 = 154,698.53 : x
  2. Step 2: Convert to fraction form
    275,549.31/380,280.02 = 154,698.53/x
  3. Step 3: Cross multiply
    275,549.31x = 380,280.02 × 154,698.53
  4. Step 4: Simplify right side
    275,549.31x = 58,828,757,407.48
  5. Step 5: Solve for x
    x = 58,828,757,407.48/275,549.31
  6. Step 6: Final answer
    x = 213,496.30

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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.