Finding the Fourth Proportional to 318,628.44, 439,692.12 and 175,385.52
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Solution
The fourth proportional to 318,628.44, 439,692.12 and 175,385.52 is: 242,023.69
Step by Step Solution
- Step 1: Write the proportion equation
318,628.44 : 439,692.12 = 175,385.52 : x - Step 2: Convert to fraction form
318,628.44/439,692.12 = 175,385.52/x - Step 3: Cross multiply
318,628.44x = 439,692.12 × 175,385.52 - Step 4: Simplify right side
318,628.44x = 77,115,631,106.10 - Step 5: Solve for x
x = 77,115,631,106.10/318,628.44 - Step 6: Final answer
x = 242,023.69
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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.