Finding the Fourth Proportional to 219,487.30, 302,876.76 and 128,846.96
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Solution
The fourth proportional to 219,487.30, 302,876.76 and 128,846.96 is: 177,799.58
Step by Step Solution
- Step 1: Write the proportion equation
219,487.30 : 302,876.76 = 128,846.96 : x - Step 2: Convert to fraction form
219,487.30/302,876.76 = 128,846.96/x - Step 3: Cross multiply
219,487.30x = 302,876.76 × 128,846.96 - Step 4: Simplify right side
219,487.30x = 39,024,749,780.65 - Step 5: Solve for x
x = 39,024,749,780.65/219,487.30 - Step 6: Final answer
x = 177,799.58
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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.