Finding the Fourth Proportional to 399,535.99, 551,350.60 and 218,248.72
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Solution
The fourth proportional to 399,535.99, 551,350.60 and 218,248.72 is: 301,178.28
Step by Step Solution
- Step 1: Write the proportion equation
399,535.99 : 551,350.60 = 218,248.72 : x - Step 2: Convert to fraction form
399,535.99/551,350.60 = 218,248.72/x - Step 3: Cross multiply
399,535.99x = 551,350.60 × 218,248.72 - Step 4: Simplify right side
399,535.99x = 120,331,562,721.23 - Step 5: Solve for x
x = 120,331,562,721.23/399,535.99 - Step 6: Final answer
x = 301,178.28
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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.