Finding the Fourth Proportional to 283,151.49, 390,749.10 and 155,827.08
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Solution
The fourth proportional to 283,151.49, 390,749.10 and 155,827.08 is: 215,041.39
Step by Step Solution
- Step 1: Write the proportion equation
283,151.49 : 390,749.10 = 155,827.08 : x - Step 2: Convert to fraction form
283,151.49/390,749.10 = 155,827.08/x - Step 3: Cross multiply
283,151.49x = 390,749.10 × 155,827.08 - Step 4: Simplify right side
283,151.49x = 60,889,291,265.63 - Step 5: Solve for x
x = 60,889,291,265.63/283,151.49 - Step 6: Final answer
x = 215,041.39
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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.