Finding the Fourth Proportional to 165,934.18, 228,988.75 and 90,482.68
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Solution
The fourth proportional to 165,934.18, 228,988.75 and 90,482.68 is: 124,865.87
Step by Step Solution
- Step 1: Write the proportion equation
165,934.18 : 228,988.75 = 90,482.68 : x - Step 2: Convert to fraction form
165,934.18/228,988.75 = 90,482.68/x - Step 3: Cross multiply
165,934.18x = 228,988.75 × 90,482.68 - Step 4: Simplify right side
165,934.18x = 20,719,515,337.44 - Step 5: Solve for x
x = 20,719,515,337.44/165,934.18 - Step 6: Final answer
x = 124,865.87
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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.