Finding the Fourth Proportional to 316,348.15, 436,560.44 and 173,108.21
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Solution
The fourth proportional to 316,348.15, 436,560.44 and 173,108.21 is: 238,889.32
Step by Step Solution
- Step 1: Write the proportion equation
316,348.15 : 436,560.44 = 173,108.21 : x - Step 2: Convert to fraction form
316,348.15/436,560.44 = 173,108.21/x - Step 3: Cross multiply
316,348.15x = 436,560.44 × 173,108.21 - Step 4: Simplify right side
316,348.15x = 75,572,193,276.87 - Step 5: Solve for x
x = 75,572,193,276.87/316,348.15 - Step 6: Final answer
x = 238,889.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.