Finding the Fourth Proportional to 187,309.68, 258,778.44 and 157,048.08
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Solution
The fourth proportional to 187,309.68, 258,778.44 and 157,048.08 is: 216,970.41
Step by Step Solution
- Step 1: Write the proportion equation
187,309.68 : 258,778.44 = 157,048.08 : x - Step 2: Convert to fraction form
187,309.68/258,778.44 = 157,048.08/x - Step 3: Cross multiply
187,309.68x = 258,778.44 × 157,048.08 - Step 4: Simplify right side
187,309.68x = 40,640,657,147.40 - Step 5: Solve for x
x = 40,640,657,147.40/187,309.68 - Step 6: Final answer
x = 216,970.41
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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.