Finding the Fourth Proportional to 487,690.23, 731,461.44 and 132,731.91
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Solution
The fourth proportional to 487,690.23, 731,461.44 and 132,731.91 is: 199,077.75
Step by Step Solution
- Step 1: Write the proportion equation
487,690.23 : 731,461.44 = 132,731.91 : x - Step 2: Convert to fraction form
487,690.23/731,461.44 = 132,731.91/x - Step 3: Cross multiply
487,690.23x = 731,461.44 × 132,731.91 - Step 4: Simplify right side
487,690.23x = 97,088,273,358.89 - Step 5: Solve for x
x = 97,088,273,358.89/487,690.23 - Step 6: Final answer
x = 199,077.75
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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.