Finding the Fourth Proportional to 384,711.12, 530,925.84 and 214,957.80
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Solution
The fourth proportional to 384,711.12, 530,925.84 and 214,957.80 is: 296,655.45
Step by Step Solution
- Step 1: Write the proportion equation
384,711.12 : 530,925.84 = 214,957.80 : x - Step 2: Convert to fraction form
384,711.12/530,925.84 = 214,957.80/x - Step 3: Cross multiply
384,711.12x = 530,925.84 × 214,957.80 - Step 4: Simplify right side
384,711.12x = 114,126,650,529.55 - Step 5: Solve for x
x = 114,126,650,529.55/384,711.12 - Step 6: Final answer
x = 296,655.45
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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.