Finding the Fourth Proportional to 283,136.24, 390,744.86 and 162,285.35
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Solution
The fourth proportional to 283,136.24, 390,744.86 and 162,285.35 is: 223,963.45
Step by Step Solution
- Step 1: Write the proportion equation
283,136.24 : 390,744.86 = 162,285.35 : x - Step 2: Convert to fraction form
283,136.24/390,744.86 = 162,285.35/x - Step 3: Cross multiply
283,136.24x = 390,744.86 × 162,285.35 - Step 4: Simplify right side
283,136.24x = 63,412,167,748.38 - Step 5: Solve for x
x = 63,412,167,748.38/283,136.24 - Step 6: Final answer
x = 223,963.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.