Finding the Fourth Proportional to 345,830.97, 518,781.03 and 105,942.09
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Solution
The fourth proportional to 345,830.97, 518,781.03 and 105,942.09 is: 158,923.73
Step by Step Solution
- Step 1: Write the proportion equation
345,830.97 : 518,781.03 = 105,942.09 : x - Step 2: Convert to fraction form
345,830.97/518,781.03 = 105,942.09/x - Step 3: Cross multiply
345,830.97x = 518,781.03 × 105,942.09 - Step 4: Simplify right side
345,830.97x = 54,960,746,570.55 - Step 5: Solve for x
x = 54,960,746,570.55/345,830.97 - Step 6: Final answer
x = 158,923.73
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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.