Finding the Fourth Proportional to 302,751.31, 418,221.74 and 286,808.08
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Solution
The fourth proportional to 302,751.31, 418,221.74 and 286,808.08 is: 396,197.70
Step by Step Solution
- Step 1: Write the proportion equation
302,751.31 : 418,221.74 = 286,808.08 : x - Step 2: Convert to fraction form
302,751.31/418,221.74 = 286,808.08/x - Step 3: Cross multiply
302,751.31x = 418,221.74 × 286,808.08 - Step 4: Simplify right side
302,751.31x = 119,949,370,738.51 - Step 5: Solve for x
x = 119,949,370,738.51/302,751.31 - Step 6: Final answer
x = 396,197.70
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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.