Finding the Fourth Proportional to 251,681.05, 347,327.16 and 136,967.10
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Solution
The fourth proportional to 251,681.05, 347,327.16 and 136,967.10 is: 189,018.57
Step by Step Solution
- Step 1: Write the proportion equation
251,681.05 : 347,327.16 = 136,967.10 : x - Step 2: Convert to fraction form
251,681.05/347,327.16 = 136,967.10/x - Step 3: Cross multiply
251,681.05x = 347,327.16 × 136,967.10 - Step 4: Simplify right side
251,681.05x = 47,572,391,434.96 - Step 5: Solve for x
x = 47,572,391,434.96/251,681.05 - Step 6: Final answer
x = 189,018.57
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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.