Finding the Fourth Proportional to 251,466.96, 347,017.48 and 138,289.71
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Solution
The fourth proportional to 251,466.96, 347,017.48 and 138,289.71 is: 190,835.99
Step by Step Solution
- Step 1: Write the proportion equation
251,466.96 : 347,017.48 = 138,289.71 : x - Step 2: Convert to fraction form
251,466.96/347,017.48 = 138,289.71/x - Step 3: Cross multiply
251,466.96x = 347,017.48 × 138,289.71 - Step 4: Simplify right side
251,466.96x = 47,988,946,674.13 - Step 5: Solve for x
x = 47,988,946,674.13/251,466.96 - Step 6: Final answer
x = 190,835.99
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1.5x scale
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.