Finding the Fourth Proportional to 201,457.74, 278,005.86 and 110,813.70
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Solution
The fourth proportional to 201,457.74, 278,005.86 and 110,813.70 is: 152,919.70
Step by Step Solution
- Step 1: Write the proportion equation
201,457.74 : 278,005.86 = 110,813.70 : x - Step 2: Convert to fraction form
201,457.74/278,005.86 = 110,813.70/x - Step 3: Cross multiply
201,457.74x = 278,005.86 × 110,813.70 - Step 4: Simplify right side
201,457.74x = 30,806,857,968.28 - Step 5: Solve for x
x = 30,806,857,968.28/201,457.74 - Step 6: Final answer
x = 152,919.70
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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.