Home / 379,368.06-569,090.38-123,189.90

Finding the Fourth Proportional to 379,368.06, 569,090.38 and 123,189.90

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Solution

The fourth proportional to 379,368.06, 569,090.38 and 123,189.90 is: 184,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,368.06 : 569,090.38 = 123,189.90 : x
  2. Step 2: Convert to fraction form
    379,368.06/569,090.38 = 123,189.90/x
  3. Step 3: Cross multiply
    379,368.06x = 569,090.38 × 123,189.90
  4. Step 4: Simplify right side
    379,368.06x = 70,106,187,003.16
  5. Step 5: Solve for x
    x = 70,106,187,003.16/379,368.06
  6. Step 6: Final answer
    x = 184,797.28

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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.