Finding the Fourth Proportional to 230,920.80, 318,743.28 and 135,466.08
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Solution
The fourth proportional to 230,920.80, 318,743.28 and 135,466.08 is: 186,985.77
Step by Step Solution
- Step 1: Write the proportion equation
230,920.80 : 318,743.28 = 135,466.08 : x - Step 2: Convert to fraction form
230,920.80/318,743.28 = 135,466.08/x - Step 3: Cross multiply
230,920.80x = 318,743.28 × 135,466.08 - Step 4: Simplify right side
230,920.80x = 43,178,902,667.94 - Step 5: Solve for x
x = 43,178,902,667.94/230,920.80 - Step 6: Final answer
x = 186,985.77
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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.