Finding the Fourth Proportional to 261,136.42, 360,478.49 and 176,368.30
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Solution
The fourth proportional to 261,136.42, 360,478.49 and 176,368.30 is: 243,462.70
Step by Step Solution
- Step 1: Write the proportion equation
261,136.42 : 360,478.49 = 176,368.30 : x - Step 2: Convert to fraction form
261,136.42/360,478.49 = 176,368.30/x - Step 3: Cross multiply
261,136.42x = 360,478.49 × 176,368.30 - Step 4: Simplify right side
261,136.42x = 63,576,975,783.63 - Step 5: Solve for x
x = 63,576,975,783.63/261,136.42 - Step 6: Final answer
x = 243,462.70
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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.