Finding the Fourth Proportional to 291,491.40, 437,237.10 and 104,521.80
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Solution
The fourth proportional to 291,491.40, 437,237.10 and 104,521.80 is: 156,782.70
Step by Step Solution
- Step 1: Write the proportion equation
291,491.40 : 437,237.10 = 104,521.80 : x - Step 2: Convert to fraction form
291,491.40/437,237.10 = 104,521.80/x - Step 3: Cross multiply
291,491.40x = 437,237.10 × 104,521.80 - Step 4: Simplify right side
291,491.40x = 45,700,808,718.78 - Step 5: Solve for x
x = 45,700,808,718.78/291,491.40 - Step 6: Final answer
x = 156,782.70
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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.