Finding the Fourth Proportional to 199,305.60, 299,073.60 and 74,659.20
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Solution
The fourth proportional to 199,305.60, 299,073.60 and 74,659.20 is: 112,031.95
Step by Step Solution
- Step 1: Write the proportion equation
199,305.60 : 299,073.60 = 74,659.20 : x - Step 2: Convert to fraction form
199,305.60/299,073.60 = 74,659.20/x - Step 3: Cross multiply
199,305.60x = 299,073.60 × 74,659.20 - Step 4: Simplify right side
199,305.60x = 22,328,595,717.12 - Step 5: Solve for x
x = 22,328,595,717.12/199,305.60 - Step 6: Final answer
x = 112,031.95
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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.