Finding the Fourth Proportional to 160,472.84, 221,455.98 and 87,878.79
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Solution
The fourth proportional to 160,472.84, 221,455.98 and 87,878.79 is: 121,274.63
Step by Step Solution
- Step 1: Write the proportion equation
160,472.84 : 221,455.98 = 87,878.79 : x - Step 2: Convert to fraction form
160,472.84/221,455.98 = 87,878.79/x - Step 3: Cross multiply
160,472.84x = 221,455.98 × 87,878.79 - Step 4: Simplify right side
160,472.84x = 19,461,283,560.66 - Step 5: Solve for x
x = 19,461,283,560.66/160,472.84 - Step 6: Final answer
x = 121,274.63
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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.