Finding the Fourth Proportional to 210,902.70, 316,354.05 and 68,747.70
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Solution
The fourth proportional to 210,902.70, 316,354.05 and 68,747.70 is: 103,121.55
Step by Step Solution
- Step 1: Write the proportion equation
210,902.70 : 316,354.05 = 68,747.70 : x - Step 2: Convert to fraction form
210,902.70/316,354.05 = 68,747.70/x - Step 3: Cross multiply
210,902.70x = 316,354.05 × 68,747.70 - Step 4: Simplify right side
210,902.70x = 21,748,613,323.19 - Step 5: Solve for x
x = 21,748,613,323.19/210,902.70 - Step 6: Final answer
x = 103,121.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.