Finding the Fourth Proportional to 664,208.10, 996,312.15 and 190,865.70
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Solution
The fourth proportional to 664,208.10, 996,312.15 and 190,865.70 is: 286,298.55
Step by Step Solution
- Step 1: Write the proportion equation
664,208.10 : 996,312.15 = 190,865.70 : x - Step 2: Convert to fraction form
664,208.10/996,312.15 = 190,865.70/x - Step 3: Cross multiply
664,208.10x = 996,312.15 × 190,865.70 - Step 4: Simplify right side
664,208.10x = 190,161,815,928.26 - Step 5: Solve for x
x = 190,161,815,928.26/664,208.10 - Step 6: Final answer
x = 286,298.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.