Home / 330,308.12-455,822.70-179,406.20

Finding the Fourth Proportional to 330,308.12, 455,822.70 and 179,406.20

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Solution

The fourth proportional to 330,308.12, 455,822.70 and 179,406.20 is: 247,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,308.12 : 455,822.70 = 179,406.20 : x
  2. Step 2: Convert to fraction form
    330,308.12/455,822.70 = 179,406.20/x
  3. Step 3: Cross multiply
    330,308.12x = 455,822.70 × 179,406.20
  4. Step 4: Simplify right side
    330,308.12x = 81,777,418,480.74
  5. Step 5: Solve for x
    x = 81,777,418,480.74/330,308.12
  6. Step 6: Final answer
    x = 247,579.20

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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.