Home / 330,390.20-455,939.02-179,487.32

Finding the Fourth Proportional to 330,390.20, 455,939.02 and 179,487.32

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Solution

The fourth proportional to 330,390.20, 455,939.02 and 179,487.32 is: 247,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,390.20 : 455,939.02 = 179,487.32 : x
  2. Step 2: Convert to fraction form
    330,390.20/455,939.02 = 179,487.32/x
  3. Step 3: Cross multiply
    330,390.20x = 455,939.02 × 179,487.32
  4. Step 4: Simplify right side
    330,390.20x = 81,835,272,783.23
  5. Step 5: Solve for x
    x = 81,835,272,783.23/330,390.20
  6. Step 6: Final answer
    x = 247,692.80

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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.