Finding the Fourth Proportional to 555,140.19, 832,349.42 and 218,213.80
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Solution
The fourth proportional to 555,140.19, 832,349.42 and 218,213.80 is: 327,178.86
Step by Step Solution
- Step 1: Write the proportion equation
555,140.19 : 832,349.42 = 218,213.80 : x - Step 2: Convert to fraction form
555,140.19/832,349.42 = 218,213.80/x - Step 3: Cross multiply
555,140.19x = 832,349.42 × 218,213.80 - Step 4: Simplify right side
555,140.19x = 181,630,133,421.77 - Step 5: Solve for x
x = 181,630,133,421.77/555,140.19 - Step 6: Final answer
x = 327,178.86
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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.