Finding the Fourth Proportional to 399,136.95, 598,387.50 and 230,465.79
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Solution
The fourth proportional to 399,136.95, 598,387.50 and 230,465.79 is: 345,515.11
Step by Step Solution
- Step 1: Write the proportion equation
399,136.95 : 598,387.50 = 230,465.79 : x - Step 2: Convert to fraction form
399,136.95/598,387.50 = 230,465.79/x - Step 3: Cross multiply
399,136.95x = 598,387.50 × 230,465.79 - Step 4: Simplify right side
399,136.95x = 137,907,847,913.63 - Step 5: Solve for x
x = 137,907,847,913.63/399,136.95 - Step 6: Final answer
x = 345,515.11
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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.