Finding the Fourth Proportional to 251,125.70, 376,688.55 and 84,913.70
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Solution
The fourth proportional to 251,125.70, 376,688.55 and 84,913.70 is: 127,370.55
Step by Step Solution
- Step 1: Write the proportion equation
251,125.70 : 376,688.55 = 84,913.70 : x - Step 2: Convert to fraction form
251,125.70/376,688.55 = 84,913.70/x - Step 3: Cross multiply
251,125.70x = 376,688.55 × 84,913.70 - Step 4: Simplify right side
251,125.70x = 31,986,018,528.14 - Step 5: Solve for x
x = 31,986,018,528.14/251,125.70 - Step 6: Final answer
x = 127,370.55
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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.