Finding the Fourth Proportional to 149,857.60, 224,721.60 and 74,948.80
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Solution
The fourth proportional to 149,857.60, 224,721.60 and 74,948.80 is: 112,390.79
Step by Step Solution
- Step 1: Write the proportion equation
149,857.60 : 224,721.60 = 74,948.80 : x - Step 2: Convert to fraction form
149,857.60/224,721.60 = 74,948.80/x - Step 3: Cross multiply
149,857.60x = 224,721.60 × 74,948.80 - Step 4: Simplify right side
149,857.60x = 16,842,614,254.08 - Step 5: Solve for x
x = 16,842,614,254.08/149,857.60 - Step 6: Final answer
x = 112,390.79
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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.