Finding the Fourth Proportional to 422,420.81, 633,632.58 and 106,877.75
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Solution
The fourth proportional to 422,420.81, 633,632.58 and 106,877.75 is: 160,316.96
Step by Step Solution
- Step 1: Write the proportion equation
422,420.81 : 633,632.58 = 106,877.75 : x - Step 2: Convert to fraction form
422,420.81/633,632.58 = 106,877.75/x - Step 3: Cross multiply
422,420.81x = 633,632.58 × 106,877.75 - Step 4: Simplify right side
422,420.81x = 67,721,221,308.93 - Step 5: Solve for x
x = 67,721,221,308.93/422,420.81 - Step 6: Final answer
x = 160,316.96
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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.