Finding the Fourth Proportional to 422,551.28, 583,121.28 and 228,958.84
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Solution
The fourth proportional to 422,551.28, 583,121.28 and 228,958.84 is: 315,963.48
Step by Step Solution
- Step 1: Write the proportion equation
422,551.28 : 583,121.28 = 228,958.84 : x - Step 2: Convert to fraction form
422,551.28/583,121.28 = 228,958.84/x - Step 3: Cross multiply
422,551.28x = 583,121.28 × 228,958.84 - Step 4: Simplify right side
422,551.28x = 133,510,771,848.12 - Step 5: Solve for x
x = 133,510,771,848.12/422,551.28 - Step 6: Final answer
x = 315,963.48
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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.