Finding the Fourth Proportional to 155,270.24, 214,246.23 and 87,277.78
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Solution
The fourth proportional to 155,270.24, 214,246.23 and 87,277.78 is: 120,428.33
Step by Step Solution
- Step 1: Write the proportion equation
155,270.24 : 214,246.23 = 87,277.78 : x - Step 2: Convert to fraction form
155,270.24/214,246.23 = 87,277.78/x - Step 3: Cross multiply
155,270.24x = 214,246.23 × 87,277.78 - Step 4: Simplify right side
155,270.24x = 18,698,935,327.77 - Step 5: Solve for x
x = 18,698,935,327.77/155,270.24 - Step 6: Final answer
x = 120,428.33
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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.