Finding the Fourth Proportional to 292,479.30, 438,427.35 and 134,432.10
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Solution
The fourth proportional to 292,479.30, 438,427.35 and 134,432.10 is: 201,514.12
Step by Step Solution
- Step 1: Write the proportion equation
292,479.30 : 438,427.35 = 134,432.10 : x - Step 2: Convert to fraction form
292,479.30/438,427.35 = 134,432.10/x - Step 3: Cross multiply
292,479.30x = 438,427.35 × 134,432.10 - Step 4: Simplify right side
292,479.30x = 58,938,709,357.94 - Step 5: Solve for x
x = 58,938,709,357.94/292,479.30 - Step 6: Final answer
x = 201,514.12
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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.