Finding the Fourth Proportional to 283,545.16, 391,292.10 and 156,220.75
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Solution
The fourth proportional to 283,545.16, 391,292.10 and 156,220.75 is: 215,584.52
Step by Step Solution
- Step 1: Write the proportion equation
283,545.16 : 391,292.10 = 156,220.75 : x - Step 2: Convert to fraction form
283,545.16/391,292.10 = 156,220.75/x - Step 3: Cross multiply
283,545.16x = 391,292.10 × 156,220.75 - Step 4: Simplify right side
283,545.16x = 61,127,945,331.08 - Step 5: Solve for x
x = 61,127,945,331.08/283,545.16 - Step 6: Final answer
x = 215,584.52
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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.