Finding the Fourth Proportional to 319,123.98, 478,528.02 and 186,037.74
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Solution
The fourth proportional to 319,123.98, 478,528.02 and 186,037.74 is: 278,964.53
Step by Step Solution
- Step 1: Write the proportion equation
319,123.98 : 478,528.02 = 186,037.74 : x - Step 2: Convert to fraction form
319,123.98/478,528.02 = 186,037.74/x - Step 3: Cross multiply
319,123.98x = 478,528.02 × 186,037.74 - Step 4: Simplify right side
319,123.98x = 89,024,271,367.47 - Step 5: Solve for x
x = 89,024,271,367.47/319,123.98 - Step 6: Final answer
x = 278,964.53
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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.