Finding the Fourth Proportional to 193,466.54, 266,980.06 and 107,421.07
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Solution
The fourth proportional to 193,466.54, 266,980.06 and 107,421.07 is: 148,238.99
Step by Step Solution
- Step 1: Write the proportion equation
193,466.54 : 266,980.06 = 107,421.07 : x - Step 2: Convert to fraction form
193,466.54/266,980.06 = 107,421.07/x - Step 3: Cross multiply
193,466.54x = 266,980.06 × 107,421.07 - Step 4: Simplify right side
193,466.54x = 28,679,283,713.86 - Step 5: Solve for x
x = 28,679,283,713.86/193,466.54 - Step 6: Final answer
x = 148,238.99
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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.