Finding the Fourth Proportional to 415,393.18, 573,433.95 and 243,287.26
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Solution
The fourth proportional to 415,393.18, 573,433.95 and 243,287.26 is: 335,848.50
Step by Step Solution
- Step 1: Write the proportion equation
415,393.18 : 573,433.95 = 243,287.26 : x - Step 2: Convert to fraction form
415,393.18/573,433.95 = 243,287.26/x - Step 3: Cross multiply
415,393.18x = 573,433.95 × 243,287.26 - Step 4: Simplify right side
415,393.18x = 139,509,174,486.48 - Step 5: Solve for x
x = 139,509,174,486.48/415,393.18 - Step 6: Final answer
x = 335,848.50
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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.