Finding the Fourth Proportional to 302,579.80, 453,869.70 and 288,801.70
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Solution
The fourth proportional to 302,579.80, 453,869.70 and 288,801.70 is: 433,202.55
Step by Step Solution
- Step 1: Write the proportion equation
302,579.80 : 453,869.70 = 288,801.70 : x - Step 2: Convert to fraction form
302,579.80/453,869.70 = 288,801.70/x - Step 3: Cross multiply
302,579.80x = 453,869.70 × 288,801.70 - Step 4: Simplify right side
302,579.80x = 131,078,340,938.49 - Step 5: Solve for x
x = 131,078,340,938.49/302,579.80 - Step 6: Final answer
x = 433,202.55
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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.