Finding the Fourth Proportional to 427,998.08, 642,094.40 and 228,213.12
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Solution
The fourth proportional to 427,998.08, 642,094.40 and 228,213.12 is: 342,371.55
Step by Step Solution
- Step 1: Write the proportion equation
427,998.08 : 642,094.40 = 228,213.12 : x - Step 2: Convert to fraction form
427,998.08/642,094.40 = 228,213.12/x - Step 3: Cross multiply
427,998.08x = 642,094.40 × 228,213.12 - Step 4: Simplify right side
427,998.08x = 146,534,366,358.53 - Step 5: Solve for x
x = 146,534,366,358.53/427,998.08 - Step 6: Final answer
x = 342,371.55
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1.5x scale
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.