Home / 378,198.18-567,303.21-111,985.74

Finding the Fourth Proportional to 378,198.18, 567,303.21 and 111,985.74

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Solution

The fourth proportional to 378,198.18, 567,303.21 and 111,985.74 is: 167,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,198.18 : 567,303.21 = 111,985.74 : x
  2. Step 2: Convert to fraction form
    378,198.18/567,303.21 = 111,985.74/x
  3. Step 3: Cross multiply
    378,198.18x = 567,303.21 × 111,985.74
  4. Step 4: Simplify right side
    378,198.18x = 63,529,869,776.23
  5. Step 5: Solve for x
    x = 63,529,869,776.23/378,198.18
  6. Step 6: Final answer
    x = 167,980.37

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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.