Finding the Fourth Proportional to 487,689.99, 731,461.06 and 132,731.67
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Solution
The fourth proportional to 487,689.99, 731,461.06 and 132,731.67 is: 199,077.39
Step by Step Solution
- Step 1: Write the proportion equation
487,689.99 : 731,461.06 = 132,731.67 : x - Step 2: Convert to fraction form
487,689.99/731,461.06 = 132,731.67/x - Step 3: Cross multiply
487,689.99x = 731,461.06 × 132,731.67 - Step 4: Simplify right side
487,689.99x = 97,088,048,033.77 - Step 5: Solve for x
x = 97,088,048,033.77/487,689.99 - Step 6: Final answer
x = 199,077.39
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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.