Finding the Fourth Proportional to 399,614.79, 551,452.05 and 218,332.99
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Solution
The fourth proportional to 399,614.79, 551,452.05 and 218,332.99 is: 301,290.59
Step by Step Solution
- Step 1: Write the proportion equation
399,614.79 : 551,452.05 = 218,332.99 : x - Step 2: Convert to fraction form
399,614.79/551,452.05 = 218,332.99/x - Step 3: Cross multiply
399,614.79x = 551,452.05 × 218,332.99 - Step 4: Simplify right side
399,614.79x = 120,400,177,158.40 - Step 5: Solve for x
x = 120,400,177,158.40/399,614.79 - Step 6: Final answer
x = 301,290.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.