Finding the Fourth Proportional to 408,511.76, 563,738.12 and 227,219.80
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Solution
The fourth proportional to 408,511.76, 563,738.12 and 227,219.80 is: 313,558.81
Step by Step Solution
- Step 1: Write the proportion equation
408,511.76 : 563,738.12 = 227,219.80 : x - Step 2: Convert to fraction form
408,511.76/563,738.12 = 227,219.80/x - Step 3: Cross multiply
408,511.76x = 563,738.12 × 227,219.80 - Step 4: Simplify right side
408,511.76x = 128,092,462,878.78 - Step 5: Solve for x
x = 128,092,462,878.78/408,511.76 - Step 6: Final answer
x = 313,558.81
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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.