Finding the Fourth Proportional to 292,497.60, 438,616.80 and 134,774.40
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Solution
The fourth proportional to 292,497.60, 438,616.80 and 134,774.40 is: 202,101.88
Step by Step Solution
- Step 1: Write the proportion equation
292,497.60 : 438,616.80 = 134,774.40 : x - Step 2: Convert to fraction form
292,497.60/438,616.80 = 134,774.40/x - Step 3: Cross multiply
292,497.60x = 438,616.80 × 134,774.40 - Step 4: Simplify right side
292,497.60x = 59,114,316,049.92 - Step 5: Solve for x
x = 59,114,316,049.92/292,497.60 - Step 6: Final answer
x = 202,101.88
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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.