Finding the Fourth Proportional to 216,875.97, 299,289.87 and 121,401.12
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Solution
The fourth proportional to 216,875.97, 299,289.87 and 121,401.12 is: 167,534.12
Step by Step Solution
- Step 1: Write the proportion equation
216,875.97 : 299,289.87 = 121,401.12 : x - Step 2: Convert to fraction form
216,875.97/299,289.87 = 121,401.12/x - Step 3: Cross multiply
216,875.97x = 299,289.87 × 121,401.12 - Step 4: Simplify right side
216,875.97x = 36,334,124,815.65 - Step 5: Solve for x
x = 36,334,124,815.65/216,875.97 - Step 6: Final answer
x = 167,534.12
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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.