Finding the Fourth Proportional to 256,948.92, 385,533.63 and 99,288.09
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Solution
The fourth proportional to 256,948.92, 385,533.63 and 99,288.09 is: 148,974.74
Step by Step Solution
- Step 1: Write the proportion equation
256,948.92 : 385,533.63 = 99,288.09 : x - Step 2: Convert to fraction form
256,948.92/385,533.63 = 99,288.09/x - Step 3: Cross multiply
256,948.92x = 385,533.63 × 99,288.09 - Step 4: Simplify right side
256,948.92x = 38,278,897,753.47 - Step 5: Solve for x
x = 38,278,897,753.47/256,948.92 - Step 6: Final answer
x = 148,974.74
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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.