Finding the Fourth Proportional to 291,738.20, 402,598.70 and 157,602.20
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Solution
The fourth proportional to 291,738.20, 402,598.70 and 157,602.20 is: 217,491.02
Step by Step Solution
- Step 1: Write the proportion equation
291,738.20 : 402,598.70 = 157,602.20 : x - Step 2: Convert to fraction form
291,738.20/402,598.70 = 157,602.20/x - Step 3: Cross multiply
291,738.20x = 402,598.70 × 157,602.20 - Step 4: Simplify right side
291,738.20x = 63,450,438,036.14 - Step 5: Solve for x
x = 63,450,438,036.14/291,738.20 - Step 6: Final answer
x = 217,491.02
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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.