Finding the Fourth Proportional to 351,952.42, 527,918.30 and 85,709.07
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Solution
The fourth proportional to 351,952.42, 527,918.30 and 85,709.07 is: 128,561.09
Step by Step Solution
- Step 1: Write the proportion equation
351,952.42 : 527,918.30 = 85,709.07 : x - Step 2: Convert to fraction form
351,952.42/527,918.30 = 85,709.07/x - Step 3: Cross multiply
351,952.42x = 527,918.30 × 85,709.07 - Step 4: Simplify right side
351,952.42x = 45,247,386,528.98 - Step 5: Solve for x
x = 45,247,386,528.98/351,952.42 - Step 6: Final answer
x = 128,561.09
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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.