Finding the Fourth Proportional to 319,214.18, 440,512.67 and 175,974.23
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Solution
The fourth proportional to 319,214.18, 440,512.67 and 175,974.23 is: 242,842.83
Step by Step Solution
- Step 1: Write the proportion equation
319,214.18 : 440,512.67 = 175,974.23 : x - Step 2: Convert to fraction form
319,214.18/440,512.67 = 175,974.23/x - Step 3: Cross multiply
319,214.18x = 440,512.67 × 175,974.23 - Step 4: Simplify right side
319,214.18x = 77,518,874,826.06 - Step 5: Solve for x
x = 77,518,874,826.06/319,214.18 - Step 6: Final answer
x = 242,842.83
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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.