Finding the Fourth Proportional to 302,563.80, 453,845.70 and 288,785.70
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Solution
The fourth proportional to 302,563.80, 453,845.70 and 288,785.70 is: 433,178.55
Step by Step Solution
- Step 1: Write the proportion equation
302,563.80 : 453,845.70 = 288,785.70 : x - Step 2: Convert to fraction form
302,563.80/453,845.70 = 288,785.70/x - Step 3: Cross multiply
302,563.80x = 453,845.70 × 288,785.70 - Step 4: Simplify right side
302,563.80x = 131,064,148,166.49 - Step 5: Solve for x
x = 131,064,148,166.49/302,563.80 - Step 6: Final answer
x = 433,178.55
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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.