Finding the Fourth Proportional to 361,789.56, 542,688.93 and 137,089.62
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Solution
The fourth proportional to 361,789.56, 542,688.93 and 137,089.62 is: 205,636.17
Step by Step Solution
- Step 1: Write the proportion equation
361,789.56 : 542,688.93 = 137,089.62 : x - Step 2: Convert to fraction form
361,789.56/542,688.93 = 137,089.62/x - Step 3: Cross multiply
361,789.56x = 542,688.93 × 137,089.62 - Step 4: Simplify right side
361,789.56x = 74,397,019,191.91 - Step 5: Solve for x
x = 74,397,019,191.91/361,789.56 - Step 6: Final answer
x = 205,636.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.