Home / 386,079.10-578,848.65-228,226.30

Finding the Fourth Proportional to 386,079.10, 578,848.65 and 228,226.30

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Solution

The fourth proportional to 386,079.10, 578,848.65 and 228,226.30 is: 342,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,079.10 : 578,848.65 = 228,226.30 : x
  2. Step 2: Convert to fraction form
    386,079.10/578,848.65 = 228,226.30/x
  3. Step 3: Cross multiply
    386,079.10x = 578,848.65 × 228,226.30
  4. Step 4: Simplify right side
    386,079.10x = 132,108,485,649.50
  5. Step 5: Solve for x
    x = 132,108,485,649.50/386,079.10
  6. Step 6: Final answer
    x = 342,179.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.