Finding the Fourth Proportional to 213,214.80, 294,235.08 and 117,720.66
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Solution
The fourth proportional to 213,214.80, 294,235.08 and 117,720.66 is: 162,453.77
Step by Step Solution
- Step 1: Write the proportion equation
213,214.80 : 294,235.08 = 117,720.66 : x - Step 2: Convert to fraction form
213,214.80/294,235.08 = 117,720.66/x - Step 3: Cross multiply
213,214.80x = 294,235.08 × 117,720.66 - Step 4: Simplify right side
213,214.80x = 34,637,547,812.75 - Step 5: Solve for x
x = 34,637,547,812.75/213,214.80 - Step 6: Final answer
x = 162,453.77
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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.