Finding the Fourth Proportional to 425,427.86, 637,916.06 and 125,867.18
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Solution
The fourth proportional to 425,427.86, 637,916.06 and 125,867.18 is: 188,733.99
Step by Step Solution
- Step 1: Write the proportion equation
425,427.86 : 637,916.06 = 125,867.18 : x - Step 2: Convert to fraction form
425,427.86/637,916.06 = 125,867.18/x - Step 3: Cross multiply
425,427.86x = 637,916.06 × 125,867.18 - Step 4: Simplify right side
425,427.86x = 80,292,695,548.91 - Step 5: Solve for x
x = 80,292,695,548.91/425,427.86 - Step 6: Final answer
x = 188,733.99
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1.5x scale
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.