Finding the Fourth Proportional to 190,385.60, 285,232.80 and 155,134.40
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Solution
The fourth proportional to 190,385.60, 285,232.80 and 155,134.40 is: 232,419.99
Step by Step Solution
- Step 1: Write the proportion equation
190,385.60 : 285,232.80 = 155,134.40 : x - Step 2: Convert to fraction form
190,385.60/285,232.80 = 155,134.40/x - Step 3: Cross multiply
190,385.60x = 285,232.80 × 155,134.40 - Step 4: Simplify right side
190,385.60x = 44,249,419,288.32 - Step 5: Solve for x
x = 44,249,419,288.32/190,385.60 - Step 6: Final answer
x = 232,419.99
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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.