Finding the Fourth Proportional to 351,949.76, 485,473.20 and 216,005.84
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Solution
The fourth proportional to 351,949.76, 485,473.20 and 216,005.84 is: 297,954.59
Step by Step Solution
- Step 1: Write the proportion equation
351,949.76 : 485,473.20 = 216,005.84 : x - Step 2: Convert to fraction form
351,949.76/485,473.20 = 216,005.84/x - Step 3: Cross multiply
351,949.76x = 485,473.20 × 216,005.84 - Step 4: Simplify right side
351,949.76x = 104,865,046,363.49 - Step 5: Solve for x
x = 104,865,046,363.49/351,949.76 - Step 6: Final answer
x = 297,954.59
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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.