Finding the Fourth Proportional to 239,136.48, 329,788.56 and 157,430.08
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Solution
The fourth proportional to 239,136.48, 329,788.56 and 157,430.08 is: 217,108.82
Step by Step Solution
- Step 1: Write the proportion equation
239,136.48 : 329,788.56 = 157,430.08 : x - Step 2: Convert to fraction form
239,136.48/329,788.56 = 157,430.08/x - Step 3: Cross multiply
239,136.48x = 329,788.56 × 157,430.08 - Step 4: Simplify right side
239,136.48x = 51,918,639,383.88 - Step 5: Solve for x
x = 51,918,639,383.88/239,136.48 - Step 6: Final answer
x = 217,108.82
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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.