Finding the Fourth Proportional to 396,941.05, 547,781.28 and 215,652.94
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Solution
The fourth proportional to 396,941.05, 547,781.28 and 215,652.94 is: 297,602.49
Step by Step Solution
- Step 1: Write the proportion equation
396,941.05 : 547,781.28 = 215,652.94 : x - Step 2: Convert to fraction form
396,941.05/547,781.28 = 215,652.94/x - Step 3: Cross multiply
396,941.05x = 547,781.28 × 215,652.94 - Step 4: Simplify right side
396,941.05x = 118,130,643,508.96 - Step 5: Solve for x
x = 118,130,643,508.96/396,941.05 - Step 6: Final answer
x = 297,602.49
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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.