Finding the Fourth Proportional to 368,579.87, 508,639.74 and 207,436.07
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Solution
The fourth proportional to 368,579.87, 508,639.74 and 207,436.07 is: 286,261.51
Step by Step Solution
- Step 1: Write the proportion equation
368,579.87 : 508,639.74 = 207,436.07 : x - Step 2: Convert to fraction form
368,579.87/508,639.74 = 207,436.07/x - Step 3: Cross multiply
368,579.87x = 508,639.74 × 207,436.07 - Step 4: Simplify right side
368,579.87x = 105,510,228,711.42 - Step 5: Solve for x
x = 105,510,228,711.42/368,579.87 - Step 6: Final answer
x = 286,261.51
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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.