Finding the Fourth Proportional to 268,828.31, 370,980.13 and 147,966.99
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Solution
The fourth proportional to 268,828.31, 370,980.13 and 147,966.99 is: 204,192.83
Step by Step Solution
- Step 1: Write the proportion equation
268,828.31 : 370,980.13 = 147,966.99 : x - Step 2: Convert to fraction form
268,828.31/370,980.13 = 147,966.99/x - Step 3: Cross multiply
268,828.31x = 370,980.13 × 147,966.99 - Step 4: Simplify right side
268,828.31x = 54,892,812,446.07 - Step 5: Solve for x
x = 54,892,812,446.07/268,828.31 - Step 6: Final answer
x = 204,192.83
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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.