Home / 279,855.02-386,204.31-152,530.46

Finding the Fourth Proportional to 279,855.02, 386,204.31 and 152,530.46

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Solution

The fourth proportional to 279,855.02, 386,204.31 and 152,530.46 is: 210,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,855.02 : 386,204.31 = 152,530.46 : x
  2. Step 2: Convert to fraction form
    279,855.02/386,204.31 = 152,530.46/x
  3. Step 3: Cross multiply
    279,855.02x = 386,204.31 × 152,530.46
  4. Step 4: Simplify right side
    279,855.02x = 58,907,921,058.28
  5. Step 5: Solve for x
    x = 58,907,921,058.28/279,855.02
  6. Step 6: Final answer
    x = 210,494.42

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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.