Finding the Fourth Proportional to 380,374.43, 570,426.55 and 140,436.99
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Solution
The fourth proportional to 380,374.43, 570,426.55 and 140,436.99 is: 210,605.61
Step by Step Solution
- Step 1: Write the proportion equation
380,374.43 : 570,426.55 = 140,436.99 : x - Step 2: Convert to fraction form
380,374.43/570,426.55 = 140,436.99/x - Step 3: Cross multiply
380,374.43x = 570,426.55 × 140,436.99 - Step 4: Simplify right side
380,374.43x = 80,108,988,136.95 - Step 5: Solve for x
x = 80,108,988,136.95/380,374.43 - Step 6: Final answer
x = 210,605.61
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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.