Finding the Fourth Proportional to 422,657.70, 633,919.08 and 156,357.63
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Solution
The fourth proportional to 422,657.70, 633,919.08 and 156,357.63 is: 234,511.49
Step by Step Solution
- Step 1: Write the proportion equation
422,657.70 : 633,919.08 = 156,357.63 : x - Step 2: Convert to fraction form
422,657.70/633,919.08 = 156,357.63/x - Step 3: Cross multiply
422,657.70x = 633,919.08 × 156,357.63 - Step 4: Simplify right side
422,657.70x = 99,118,084,960.58 - Step 5: Solve for x
x = 99,118,084,960.58/422,657.70 - Step 6: Final answer
x = 234,511.49
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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.