Finding the Fourth Proportional to 457,739.64, 686,153.16 and 217,432.08
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Solution
The fourth proportional to 457,739.64, 686,153.16 and 217,432.08 is: 325,931.37
Step by Step Solution
- Step 1: Write the proportion equation
457,739.64 : 686,153.16 = 217,432.08 : x - Step 2: Convert to fraction form
457,739.64/686,153.16 = 217,432.08/x - Step 3: Cross multiply
457,739.64x = 686,153.16 × 217,432.08 - Step 4: Simplify right side
457,739.64x = 149,191,708,777.37 - Step 5: Solve for x
x = 149,191,708,777.37/457,739.64 - Step 6: Final answer
x = 325,931.37
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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.