Finding the Fourth Proportional to 313,504.71, 432,639.68 and 170,267.55
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Solution
The fourth proportional to 313,504.71, 432,639.68 and 170,267.55 is: 234,970.94
Step by Step Solution
- Step 1: Write the proportion equation
313,504.71 : 432,639.68 = 170,267.55 : x - Step 2: Convert to fraction form
313,504.71/432,639.68 = 170,267.55/x - Step 3: Cross multiply
313,504.71x = 432,639.68 × 170,267.55 - Step 4: Simplify right side
313,504.71x = 73,664,497,495.05 - Step 5: Solve for x
x = 73,664,497,495.05/313,504.71 - Step 6: Final answer
x = 234,970.94
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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.