Finding the Fourth Proportional to 190,854.05, 286,281.08 and 85,878.05
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Solution
The fourth proportional to 190,854.05, 286,281.08 and 85,878.05 is: 128,817.08
Step by Step Solution
- Step 1: Write the proportion equation
190,854.05 : 286,281.08 = 85,878.05 : x - Step 2: Convert to fraction form
190,854.05/286,281.08 = 85,878.05/x - Step 3: Cross multiply
190,854.05x = 286,281.08 × 85,878.05 - Step 4: Simplify right side
190,854.05x = 24,585,260,472.90 - Step 5: Solve for x
x = 24,585,260,472.90/190,854.05 - Step 6: Final answer
x = 128,817.08
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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.