Finding the Fourth Proportional to 228,215.80, 342,323.70 and 201,971.80
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Solution
The fourth proportional to 228,215.80, 342,323.70 and 201,971.80 is: 302,957.70
Step by Step Solution
- Step 1: Write the proportion equation
228,215.80 : 342,323.70 = 201,971.80 : x - Step 2: Convert to fraction form
228,215.80/342,323.70 = 201,971.80/x - Step 3: Cross multiply
228,215.80x = 342,323.70 × 201,971.80 - Step 4: Simplify right side
228,215.80x = 69,139,733,871.66 - Step 5: Solve for x
x = 69,139,733,871.66/228,215.80 - Step 6: Final answer
x = 302,957.70
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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.