Finding the Fourth Proportional to 219,011.79, 328,515.75 and 69,252.21
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Solution
The fourth proportional to 219,011.79, 328,515.75 and 69,252.21 is: 103,877.70
Step by Step Solution
- Step 1: Write the proportion equation
219,011.79 : 328,515.75 = 69,252.21 : x - Step 2: Convert to fraction form
219,011.79/328,515.75 = 69,252.21/x - Step 3: Cross multiply
219,011.79x = 328,515.75 × 69,252.21 - Step 4: Simplify right side
219,011.79x = 22,750,441,707.31 - Step 5: Solve for x
x = 22,750,441,707.31/219,011.79 - Step 6: Final answer
x = 103,877.70
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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.