Finding the Fourth Proportional to 282,733.93, 390,173.12 and 155,406.79
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Solution
The fourth proportional to 282,733.93, 390,173.12 and 155,406.79 is: 214,461.53
Step by Step Solution
- Step 1: Write the proportion equation
282,733.93 : 390,173.12 = 155,406.79 : x - Step 2: Convert to fraction form
282,733.93/390,173.12 = 155,406.79/x - Step 3: Cross multiply
282,733.93x = 390,173.12 × 155,406.79 - Step 4: Simplify right side
282,733.93x = 60,635,551,346.45 - Step 5: Solve for x
x = 60,635,551,346.45/282,733.93 - Step 6: Final answer
x = 214,461.53
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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.