Finding the Fourth Proportional to 219,854.84, 329,839.12 and 128,747.19
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Solution
The fourth proportional to 219,854.84, 329,839.12 and 128,747.19 is: 193,154.08
Step by Step Solution
- Step 1: Write the proportion equation
219,854.84 : 329,839.12 = 128,747.19 : x - Step 2: Convert to fraction form
219,854.84/329,839.12 = 128,747.19/x - Step 3: Cross multiply
219,854.84x = 329,839.12 × 128,747.19 - Step 4: Simplify right side
219,854.84x = 42,465,859,635.96 - Step 5: Solve for x
x = 42,465,859,635.96/219,854.84 - Step 6: Final answer
x = 193,154.08
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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.