Finding the Fourth Proportional to 436,862.20, 655,293.54 and 121,319.08
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Solution
The fourth proportional to 436,862.20, 655,293.54 and 121,319.08 is: 181,978.69
Step by Step Solution
- Step 1: Write the proportion equation
436,862.20 : 655,293.54 = 121,319.08 : x - Step 2: Convert to fraction form
436,862.20/655,293.54 = 121,319.08/x - Step 3: Cross multiply
436,862.20x = 655,293.54 × 121,319.08 - Step 4: Simplify right side
436,862.20x = 79,499,609,402.74 - Step 5: Solve for x
x = 79,499,609,402.74/436,862.20 - Step 6: Final answer
x = 181,978.69
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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.