Finding the Fourth Proportional to 313,880.80, 433,154.56 and 170,639.84
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Solution
The fourth proportional to 313,880.80, 433,154.56 and 170,639.84 is: 235,482.47
Step by Step Solution
- Step 1: Write the proportion equation
313,880.80 : 433,154.56 = 170,639.84 : x - Step 2: Convert to fraction form
313,880.80/433,154.56 = 170,639.84/x - Step 3: Cross multiply
313,880.80x = 433,154.56 × 170,639.84 - Step 4: Simplify right side
313,880.80x = 73,913,424,813.67 - Step 5: Solve for x
x = 73,913,424,813.67/313,880.80 - Step 6: Final answer
x = 235,482.47
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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.