Finding the Fourth Proportional to 221,901.03, 306,206.87 and 126,389.07
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Solution
The fourth proportional to 221,901.03, 306,206.87 and 126,389.07 is: 174,407.49
Step by Step Solution
- Step 1: Write the proportion equation
221,901.03 : 306,206.87 = 126,389.07 : x - Step 2: Convert to fraction form
221,901.03/306,206.87 = 126,389.07/x - Step 3: Cross multiply
221,901.03x = 306,206.87 × 126,389.07 - Step 4: Simplify right side
221,901.03x = 38,701,200,894.97 - Step 5: Solve for x
x = 38,701,200,894.97/221,901.03 - Step 6: Final answer
x = 174,407.49
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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.