Finding the Fourth Proportional to 474,122.20, 711,285.70 and 141,731.80
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Solution
The fourth proportional to 474,122.20, 711,285.70 and 141,731.80 is: 212,628.31
Step by Step Solution
- Step 1: Write the proportion equation
474,122.20 : 711,285.70 = 141,731.80 : x - Step 2: Convert to fraction form
474,122.20/711,285.70 = 141,731.80/x - Step 3: Cross multiply
474,122.20x = 711,285.70 × 141,731.80 - Step 4: Simplify right side
474,122.20x = 100,811,802,575.26 - Step 5: Solve for x
x = 100,811,802,575.26/474,122.20 - Step 6: Final answer
x = 212,628.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.