Home / 405,382.23-559,434.24-235,616.31

Finding the Fourth Proportional to 405,382.23, 559,434.24 and 235,616.31

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Solution

The fourth proportional to 405,382.23, 559,434.24 and 235,616.31 is: 325,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,382.23 : 559,434.24 = 235,616.31 : x
  2. Step 2: Convert to fraction form
    405,382.23/559,434.24 = 235,616.31/x
  3. Step 3: Cross multiply
    405,382.23x = 559,434.24 × 235,616.31
  4. Step 4: Simplify right side
    405,382.23x = 131,811,831,316.45
  5. Step 5: Solve for x
    x = 131,811,831,316.45/405,382.23
  6. Step 6: Final answer
    x = 325,154.44

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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.