Finding the Fourth Proportional to 287,248.60, 431,069.68 and 100,260.08
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Solution
The fourth proportional to 287,248.60, 431,069.68 and 100,260.08 is: 150,458.80
Step by Step Solution
- Step 1: Write the proportion equation
287,248.60 : 431,069.68 = 100,260.08 : x - Step 2: Convert to fraction form
287,248.60/431,069.68 = 100,260.08/x - Step 3: Cross multiply
287,248.60x = 431,069.68 × 100,260.08 - Step 4: Simplify right side
287,248.60x = 43,219,080,602.37 - Step 5: Solve for x
x = 43,219,080,602.37/287,248.60 - Step 6: Final answer
x = 150,458.80
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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.