Finding the Fourth Proportional to 302,428.80, 453,643.20 and 297,763.20
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Solution
The fourth proportional to 302,428.80, 453,643.20 and 297,763.20 is: 446,644.80
Step by Step Solution
- Step 1: Write the proportion equation
302,428.80 : 453,643.20 = 297,763.20 : x - Step 2: Convert to fraction form
302,428.80/453,643.20 = 297,763.20/x - Step 3: Cross multiply
302,428.80x = 453,643.20 × 297,763.20 - Step 4: Simplify right side
302,428.80x = 135,078,250,890.24 - Step 5: Solve for x
x = 135,078,250,890.24/302,428.80 - Step 6: Final answer
x = 446,644.80
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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.