Finding the Fourth Proportional to 311,276.08, 429,562.76 and 177,140.08
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Solution
The fourth proportional to 311,276.08, 429,562.76 and 177,140.08 is: 244,454.32
Step by Step Solution
- Step 1: Write the proportion equation
311,276.08 : 429,562.76 = 177,140.08 : x - Step 2: Convert to fraction form
311,276.08/429,562.76 = 177,140.08/x - Step 3: Cross multiply
311,276.08x = 429,562.76 × 177,140.08 - Step 4: Simplify right side
311,276.08x = 76,092,781,671.42 - Step 5: Solve for x
x = 76,092,781,671.42/311,276.08 - Step 6: Final answer
x = 244,454.32
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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.