Finding the Fourth Proportional to 221,965.64, 306,312.58 and 121,363.64
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Solution
The fourth proportional to 221,965.64, 306,312.58 and 121,363.64 is: 167,481.82
Step by Step Solution
- Step 1: Write the proportion equation
221,965.64 : 306,312.58 = 121,363.64 : x - Step 2: Convert to fraction form
221,965.64/306,312.58 = 121,363.64/x - Step 3: Cross multiply
221,965.64x = 306,312.58 × 121,363.64 - Step 4: Simplify right side
221,965.64x = 37,175,209,686.59 - Step 5: Solve for x
x = 37,175,209,686.59/221,965.64 - Step 6: Final answer
x = 167,481.82
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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.