Finding the Fourth Proportional to 315,756.99, 473,862.39 and 126,108.66
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Solution
The fourth proportional to 315,756.99, 473,862.39 and 126,108.66 is: 189,253.61
Step by Step Solution
- Step 1: Write the proportion equation
315,756.99 : 473,862.39 = 126,108.66 : x - Step 2: Convert to fraction form
315,756.99/473,862.39 = 126,108.66/x - Step 3: Cross multiply
315,756.99x = 473,862.39 × 126,108.66 - Step 4: Simplify right side
315,756.99x = 59,758,151,027.30 - Step 5: Solve for x
x = 59,758,151,027.30/315,756.99 - Step 6: Final answer
x = 189,253.61
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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.