Finding the Fourth Proportional to 297,031.74, 445,695.21 and 139,272.54
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Solution
The fourth proportional to 297,031.74, 445,695.21 and 139,272.54 is: 208,978.02
Step by Step Solution
- Step 1: Write the proportion equation
297,031.74 : 445,695.21 = 139,272.54 : x - Step 2: Convert to fraction form
297,031.74/445,695.21 = 139,272.54/x - Step 3: Cross multiply
297,031.74x = 445,695.21 × 139,272.54 - Step 4: Simplify right side
297,031.74x = 62,073,103,962.53 - Step 5: Solve for x
x = 62,073,103,962.53/297,031.74 - Step 6: Final answer
x = 208,978.02
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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.