Finding the Fourth Proportional to 472,729.90, 709,101.02 and 157,186.84
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Solution
The fourth proportional to 472,729.90, 709,101.02 and 157,186.84 is: 235,782.31
Step by Step Solution
- Step 1: Write the proportion equation
472,729.90 : 709,101.02 = 157,186.84 : x - Step 2: Convert to fraction form
472,729.90/709,101.02 = 157,186.84/x - Step 3: Cross multiply
472,729.90x = 709,101.02 × 157,186.84 - Step 4: Simplify right side
472,729.90x = 111,461,347,194.79 - Step 5: Solve for x
x = 111,461,347,194.79/472,729.90 - Step 6: Final answer
x = 235,782.31
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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.