Finding the Fourth Proportional to 331,652.19, 457,681.54 and 188,420.09
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Solution
The fourth proportional to 331,652.19, 457,681.54 and 188,420.09 is: 260,020.59
Step by Step Solution
- Step 1: Write the proportion equation
331,652.19 : 457,681.54 = 188,420.09 : x - Step 2: Convert to fraction form
331,652.19/457,681.54 = 188,420.09/x - Step 3: Cross multiply
331,652.19x = 457,681.54 × 188,420.09 - Step 4: Simplify right side
331,652.19x = 86,236,397,126.43 - Step 5: Solve for x
x = 86,236,397,126.43/331,652.19 - Step 6: Final answer
x = 260,020.59
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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.