Finding the Fourth Proportional to 155,415.84, 214,472.88 and 88,347.84
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Solution
The fourth proportional to 155,415.84, 214,472.88 and 88,347.84 is: 121,919.46
Step by Step Solution
- Step 1: Write the proportion equation
155,415.84 : 214,472.88 = 88,347.84 : x - Step 2: Convert to fraction form
155,415.84/214,472.88 = 88,347.84/x - Step 3: Cross multiply
155,415.84x = 214,472.88 × 88,347.84 - Step 4: Simplify right side
155,415.84x = 18,948,215,686.58 - Step 5: Solve for x
x = 18,948,215,686.58/155,415.84 - Step 6: Final answer
x = 121,919.46
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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.