Finding the Fourth Proportional to 299,278.39, 448,925.32 and 86,037.68
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Solution
The fourth proportional to 299,278.39, 448,925.32 and 86,037.68 is: 129,058.75
Step by Step Solution
- Step 1: Write the proportion equation
299,278.39 : 448,925.32 = 86,037.68 : x - Step 2: Convert to fraction form
299,278.39/448,925.32 = 86,037.68/x - Step 3: Cross multiply
299,278.39x = 448,925.32 × 86,037.68 - Step 4: Simplify right side
299,278.39x = 38,624,493,026.06 - Step 5: Solve for x
x = 38,624,493,026.06/299,278.39 - Step 6: Final answer
x = 129,058.75
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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.