Finding the Fourth Proportional to 219,573.84, 302,900.36 and 138,865.36
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Solution
The fourth proportional to 219,573.84, 302,900.36 and 138,865.36 is: 191,563.66
Step by Step Solution
- Step 1: Write the proportion equation
219,573.84 : 302,900.36 = 138,865.36 : x - Step 2: Convert to fraction form
219,573.84/302,900.36 = 138,865.36/x - Step 3: Cross multiply
219,573.84x = 302,900.36 × 138,865.36 - Step 4: Simplify right side
219,573.84x = 42,062,367,535.53 - Step 5: Solve for x
x = 42,062,367,535.53/219,573.84 - Step 6: Final answer
x = 191,563.66
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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.