Finding the Fourth Proportional to 295,178.70, 442,720.53 and 84,768.78
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Solution
The fourth proportional to 295,178.70, 442,720.53 and 84,768.78 is: 127,139.52
Step by Step Solution
- Step 1: Write the proportion equation
295,178.70 : 442,720.53 = 84,768.78 : x - Step 2: Convert to fraction form
295,178.70/442,720.53 = 84,768.78/x - Step 3: Cross multiply
295,178.70x = 442,720.53 × 84,768.78 - Step 4: Simplify right side
295,178.70x = 37,528,879,209.05 - Step 5: Solve for x
x = 37,528,879,209.05/295,178.70 - Step 6: Final answer
x = 127,139.52
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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.