Finding the Fourth Proportional to 342,135.82, 472,135.47 and 187,090.70
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Solution
The fourth proportional to 342,135.82, 472,135.47 and 187,090.70 is: 258,178.63
Step by Step Solution
- Step 1: Write the proportion equation
342,135.82 : 472,135.47 = 187,090.70 : x - Step 2: Convert to fraction form
342,135.82/472,135.47 = 187,090.70/x - Step 3: Cross multiply
342,135.82x = 472,135.47 × 187,090.70 - Step 4: Simplify right side
342,135.82x = 88,332,155,577.13 - Step 5: Solve for x
x = 88,332,155,577.13/342,135.82 - Step 6: Final answer
x = 258,178.63
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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.