Finding the Fourth Proportional to 645,511.68, 968,267.52 and 196,231.68
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Solution
The fourth proportional to 645,511.68, 968,267.52 and 196,231.68 is: 294,347.52
Step by Step Solution
- Step 1: Write the proportion equation
645,511.68 : 968,267.52 = 196,231.68 : x - Step 2: Convert to fraction form
645,511.68/968,267.52 = 196,231.68/x - Step 3: Cross multiply
645,511.68x = 968,267.52 × 196,231.68 - Step 4: Simplify right side
645,511.68x = 190,004,762,139.03 - Step 5: Solve for x
x = 190,004,762,139.03/645,511.68 - Step 6: Final answer
x = 294,347.52
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.