Finding the Fourth Proportional to 156,784.11, 235,478.70 and 134,345.49
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Solution
The fourth proportional to 156,784.11, 235,478.70 and 134,345.49 is: 201,777.47
Step by Step Solution
- Step 1: Write the proportion equation
156,784.11 : 235,478.70 = 134,345.49 : x - Step 2: Convert to fraction form
156,784.11/235,478.70 = 134,345.49/x - Step 3: Cross multiply
156,784.11x = 235,478.70 × 134,345.49 - Step 4: Simplify right side
156,784.11x = 31,635,501,336.06 - Step 5: Solve for x
x = 31,635,501,336.06/156,784.11 - Step 6: Final answer
x = 201,777.47
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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.