Home / 330,243.69-455,875.80-222,959.04

Finding the Fourth Proportional to 330,243.69, 455,875.80 and 222,959.04

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Solution

The fourth proportional to 330,243.69, 455,875.80 and 222,959.04 is: 307,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,243.69 : 455,875.80 = 222,959.04 : x
  2. Step 2: Convert to fraction form
    330,243.69/455,875.80 = 222,959.04/x
  3. Step 3: Cross multiply
    330,243.69x = 455,875.80 × 222,959.04
  4. Step 4: Simplify right side
    330,243.69x = 101,641,630,727.23
  5. Step 5: Solve for x
    x = 101,641,630,727.23/330,243.69
  6. Step 6: Final answer
    x = 307,777.66

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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.