Home / 405,436.23-559,535.72-235,703.43

Finding the Fourth Proportional to 405,436.23, 559,535.72 and 235,703.43

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Solution

The fourth proportional to 405,436.23, 559,535.72 and 235,703.43 is: 325,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,436.23 : 559,535.72 = 235,703.43 : x
  2. Step 2: Convert to fraction form
    405,436.23/559,535.72 = 235,703.43/x
  3. Step 3: Cross multiply
    405,436.23x = 559,535.72 × 235,703.43
  4. Step 4: Simplify right side
    405,436.23x = 131,884,487,233.00
  5. Step 5: Solve for x
    x = 131,884,487,233.00/405,436.23
  6. Step 6: Final answer
    x = 325,290.34

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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.