Finding the Fourth Proportional to 230,985.78, 318,670.92 and 135,457.62
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Solution
The fourth proportional to 230,985.78, 318,670.92 and 135,457.62 is: 186,879.06
Step by Step Solution
- Step 1: Write the proportion equation
230,985.78 : 318,670.92 = 135,457.62 : x - Step 2: Convert to fraction form
230,985.78/318,670.92 = 135,457.62/x - Step 3: Cross multiply
230,985.78x = 318,670.92 × 135,457.62 - Step 4: Simplify right side
230,985.78x = 43,166,404,386.41 - Step 5: Solve for x
x = 43,166,404,386.41/230,985.78 - Step 6: Final answer
x = 186,879.06
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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.