Finding the Fourth Proportional to 361,328.79, 498,703.47 and 208,465.68
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Solution
The fourth proportional to 361,328.79, 498,703.47 and 208,465.68 is: 287,722.87
Step by Step Solution
- Step 1: Write the proportion equation
361,328.79 : 498,703.47 = 208,465.68 : x - Step 2: Convert to fraction form
361,328.79/498,703.47 = 208,465.68/x - Step 3: Cross multiply
361,328.79x = 498,703.47 × 208,465.68 - Step 4: Simplify right side
361,328.79x = 103,962,557,991.91 - Step 5: Solve for x
x = 103,962,557,991.91/361,328.79 - Step 6: Final answer
x = 287,722.87
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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.