Finding the Fourth Proportional to 251,652.48, 347,282.88 and 138,477.68
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Solution
The fourth proportional to 251,652.48, 347,282.88 and 138,477.68 is: 191,100.55
Step by Step Solution
- Step 1: Write the proportion equation
251,652.48 : 347,282.88 = 138,477.68 : x - Step 2: Convert to fraction form
251,652.48/347,282.88 = 138,477.68/x - Step 3: Cross multiply
251,652.48x = 347,282.88 × 138,477.68 - Step 4: Simplify right side
251,652.48x = 48,090,927,526.12 - Step 5: Solve for x
x = 48,090,927,526.12/251,652.48 - Step 6: Final answer
x = 191,100.55
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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.