Finding the Fourth Proportional to 346,639.19, 478,360.77 and 193,691.35
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Solution
The fourth proportional to 346,639.19, 478,360.77 and 193,691.35 is: 267,293.32
Step by Step Solution
- Step 1: Write the proportion equation
346,639.19 : 478,360.77 = 193,691.35 : x - Step 2: Convert to fraction form
346,639.19/478,360.77 = 193,691.35/x - Step 3: Cross multiply
346,639.19x = 478,360.77 × 193,691.35 - Step 4: Simplify right side
346,639.19x = 92,654,340,936.54 - Step 5: Solve for x
x = 92,654,340,936.54/346,639.19 - Step 6: Final answer
x = 267,293.32
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1.5x scale
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.