Finding the Fourth Proportional to 291,738.80, 402,598.92 and 157,602.80
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Solution
The fourth proportional to 291,738.80, 402,598.92 and 157,602.80 is: 217,491.53
Step by Step Solution
- Step 1: Write the proportion equation
291,738.80 : 402,598.92 = 157,602.80 : x - Step 2: Convert to fraction form
291,738.80/402,598.92 = 157,602.80/x - Step 3: Cross multiply
291,738.80x = 402,598.92 × 157,602.80 - Step 4: Simplify right side
291,738.80x = 63,450,717,068.98 - Step 5: Solve for x
x = 63,450,717,068.98/291,738.80 - Step 6: Final answer
x = 217,491.53
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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.