Finding the Fourth Proportional to 292,021.19, 402,989.24 and 157,885.19
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Solution
The fourth proportional to 292,021.19, 402,989.24 and 157,885.19 is: 217,881.56
Step by Step Solution
- Step 1: Write the proportion equation
292,021.19 : 402,989.24 = 157,885.19 : x - Step 2: Convert to fraction form
292,021.19/402,989.24 = 157,885.19/x - Step 3: Cross multiply
292,021.19x = 402,989.24 × 157,885.19 - Step 4: Simplify right side
292,021.19x = 63,626,032,725.36 - Step 5: Solve for x
x = 63,626,032,725.36/292,021.19 - Step 6: Final answer
x = 217,881.56
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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.