Finding the Fourth Proportional to 421,014.08, 580,992.60 and 230,023.36
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Solution
The fourth proportional to 421,014.08, 580,992.60 and 230,023.36 is: 317,428.50
Step by Step Solution
- Step 1: Write the proportion equation
421,014.08 : 580,992.60 = 230,023.36 : x - Step 2: Convert to fraction form
421,014.08/580,992.60 = 230,023.36/x - Step 3: Cross multiply
421,014.08x = 580,992.60 × 230,023.36 - Step 4: Simplify right side
421,014.08x = 133,641,869,987.14 - Step 5: Solve for x
x = 133,641,869,987.14/421,014.08 - Step 6: Final answer
x = 317,428.50
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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.