Finding the Fourth Proportional to 408,657.21, 563,938.16 and 236,582.46
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Solution
The fourth proportional to 408,657.21, 563,938.16 and 236,582.46 is: 326,478.70
Step by Step Solution
- Step 1: Write the proportion equation
408,657.21 : 563,938.16 = 236,582.46 : x - Step 2: Convert to fraction form
408,657.21/563,938.16 = 236,582.46/x - Step 3: Cross multiply
408,657.21x = 563,938.16 × 236,582.46 - Step 4: Simplify right side
408,657.21x = 133,417,875,997.76 - Step 5: Solve for x
x = 133,417,875,997.76/408,657.21 - Step 6: Final answer
x = 326,478.70
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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.