Finding the Fourth Proportional to 309,125.68, 426,598.86 and 173,158.56
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Solution
The fourth proportional to 309,125.68, 426,598.86 and 173,158.56 is: 238,961.85
Step by Step Solution
- Step 1: Write the proportion equation
309,125.68 : 426,598.86 = 173,158.56 : x - Step 2: Convert to fraction form
309,125.68/426,598.86 = 173,158.56/x - Step 3: Cross multiply
309,125.68x = 426,598.86 × 173,158.56 - Step 4: Simplify right side
309,125.68x = 73,869,244,295.24 - Step 5: Solve for x
x = 73,869,244,295.24/309,125.68 - Step 6: Final answer
x = 238,961.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.