Finding the Fourth Proportional to 384,440.16, 530,516.58 and 212,354.70
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Solution
The fourth proportional to 384,440.16, 530,516.58 and 212,354.70 is: 293,043.50
Step by Step Solution
- Step 1: Write the proportion equation
384,440.16 : 530,516.58 = 212,354.70 : x - Step 2: Convert to fraction form
384,440.16/530,516.58 = 212,354.70/x - Step 3: Cross multiply
384,440.16x = 530,516.58 × 212,354.70 - Step 4: Simplify right side
384,440.16x = 112,657,689,190.93 - Step 5: Solve for x
x = 112,657,689,190.93/384,440.16 - Step 6: Final answer
x = 293,043.50
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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.