Finding the Fourth Proportional to 371,421.86, 557,354.12 and 134,782.99
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Solution
The fourth proportional to 371,421.86, 557,354.12 and 134,782.99 is: 202,254.80
Step by Step Solution
- Step 1: Write the proportion equation
371,421.86 : 557,354.12 = 134,782.99 : x - Step 2: Convert to fraction form
371,421.86/557,354.12 = 134,782.99/x - Step 3: Cross multiply
371,421.86x = 557,354.12 × 134,782.99 - Step 4: Simplify right side
371,421.86x = 75,121,852,715.12 - Step 5: Solve for x
x = 75,121,852,715.12/371,421.86 - Step 6: Final answer
x = 202,254.80
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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.