Finding the Fourth Proportional to 387,702.36, 534,964.05 and 215,597.76
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Solution
The fourth proportional to 387,702.36, 534,964.05 and 215,597.76 is: 297,488.65
Step by Step Solution
- Step 1: Write the proportion equation
387,702.36 : 534,964.05 = 215,597.76 : x - Step 2: Convert to fraction form
387,702.36/534,964.05 = 215,597.76/x - Step 3: Cross multiply
387,702.36x = 534,964.05 × 215,597.76 - Step 4: Simplify right side
387,702.36x = 115,337,050,860.53 - Step 5: Solve for x
x = 115,337,050,860.53/387,702.36 - Step 6: Final answer
x = 297,488.65
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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.