Finding the Fourth Proportional to 320,918.80, 442,874.70 and 175,730.70
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Solution
The fourth proportional to 320,918.80, 442,874.70 and 175,730.70 is: 242,512.07
Step by Step Solution
- Step 1: Write the proportion equation
320,918.80 : 442,874.70 = 175,730.70 : x - Step 2: Convert to fraction form
320,918.80/442,874.70 = 175,730.70/x - Step 3: Cross multiply
320,918.80x = 442,874.70 × 175,730.70 - Step 4: Simplify right side
320,918.80x = 77,826,681,043.29 - Step 5: Solve for x
x = 77,826,681,043.29/320,918.80 - Step 6: Final answer
x = 242,512.07
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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.