Home / 376,428.06-519,242.67-223,365.60

Finding the Fourth Proportional to 376,428.06, 519,242.67 and 223,365.60

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Solution

The fourth proportional to 376,428.06, 519,242.67 and 223,365.60 is: 308,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,428.06 : 519,242.67 = 223,365.60 : x
  2. Step 2: Convert to fraction form
    376,428.06/519,242.67 = 223,365.60/x
  3. Step 3: Cross multiply
    376,428.06x = 519,242.67 × 223,365.60
  4. Step 4: Simplify right side
    376,428.06x = 115,980,950,530.15
  5. Step 5: Solve for x
    x = 115,980,950,530.15/376,428.06
  6. Step 6: Final answer
    x = 308,109.21

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1.5x scale

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.