Finding the Fourth Proportional to 421,655.12, 632,690.43 and 197,031.08
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Solution
The fourth proportional to 421,655.12, 632,690.43 and 197,031.08 is: 295,643.69
Step by Step Solution
- Step 1: Write the proportion equation
421,655.12 : 632,690.43 = 197,031.08 : x - Step 2: Convert to fraction form
421,655.12/632,690.43 = 197,031.08/x - Step 3: Cross multiply
421,655.12x = 632,690.43 × 197,031.08 - Step 4: Simplify right side
421,655.12x = 124,659,675,565.11 - Step 5: Solve for x
x = 124,659,675,565.11/421,655.12 - Step 6: Final answer
x = 295,643.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.