Finding the Fourth Proportional to 210,957.48, 291,110.10 and 115,445.70
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Solution
The fourth proportional to 210,957.48, 291,110.10 and 115,445.70 is: 159,308.92
Step by Step Solution
- Step 1: Write the proportion equation
210,957.48 : 291,110.10 = 115,445.70 : x - Step 2: Convert to fraction form
210,957.48/291,110.10 = 115,445.70/x - Step 3: Cross multiply
210,957.48x = 291,110.10 × 115,445.70 - Step 4: Simplify right side
210,957.48x = 33,607,409,271.57 - Step 5: Solve for x
x = 33,607,409,271.57/210,957.48 - Step 6: Final answer
x = 159,308.92
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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.