Finding the Fourth Proportional to 319,269.64, 478,581.04 and 207,021.08
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Solution
The fourth proportional to 319,269.64, 478,581.04 and 207,021.08 is: 310,321.91
Step by Step Solution
- Step 1: Write the proportion equation
319,269.64 : 478,581.04 = 207,021.08 : x - Step 2: Convert to fraction form
319,269.64/478,581.04 = 207,021.08/x - Step 3: Cross multiply
319,269.64x = 478,581.04 × 207,021.08 - Step 4: Simplify right side
319,269.64x = 99,076,363,768.32 - Step 5: Solve for x
x = 99,076,363,768.32/319,269.64 - Step 6: Final answer
x = 310,321.91
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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.