Finding the Fourth Proportional to 420,762.08, 631,148.70 and 140,279.44
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Solution
The fourth proportional to 420,762.08, 631,148.70 and 140,279.44 is: 210,421.02
Step by Step Solution
- Step 1: Write the proportion equation
420,762.08 : 631,148.70 = 140,279.44 : x - Step 2: Convert to fraction form
420,762.08/631,148.70 = 140,279.44/x - Step 3: Cross multiply
420,762.08x = 631,148.70 × 140,279.44 - Step 4: Simplify right side
420,762.08x = 88,537,186,192.73 - Step 5: Solve for x
x = 88,537,186,192.73/420,762.08 - Step 6: Final answer
x = 210,421.02
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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.