Finding the Fourth Proportional to 260,945.44, 390,753.68 and 171,929.07
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Solution
The fourth proportional to 260,945.44, 390,753.68 and 171,929.07 is: 257,455.80
Step by Step Solution
- Step 1: Write the proportion equation
260,945.44 : 390,753.68 = 171,929.07 : x - Step 2: Convert to fraction form
260,945.44/390,753.68 = 171,929.07/x - Step 3: Cross multiply
260,945.44x = 390,753.68 × 171,929.07 - Step 4: Simplify right side
260,945.44x = 67,181,916,601.21 - Step 5: Solve for x
x = 67,181,916,601.21/260,945.44 - Step 6: Final answer
x = 257,455.80
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1.5x scale
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.