Finding the Fourth Proportional to 239,157.65, 358,787.07 and 79,224.53
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Solution
The fourth proportional to 239,157.65, 358,787.07 and 79,224.53 is: 118,853.55
Step by Step Solution
- Step 1: Write the proportion equation
239,157.65 : 358,787.07 = 79,224.53 : x - Step 2: Convert to fraction form
239,157.65/358,787.07 = 79,224.53/x - Step 3: Cross multiply
239,157.65x = 358,787.07 × 79,224.53 - Step 4: Simplify right side
239,157.65x = 28,424,735,196.89 - Step 5: Solve for x
x = 28,424,735,196.89/239,157.65 - Step 6: Final answer
x = 118,853.55
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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.