Finding the Fourth Proportional to 257,262.99, 385,894.63 and 107,421.59
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Solution
The fourth proportional to 257,262.99, 385,894.63 and 107,421.59 is: 161,132.45
Step by Step Solution
- Step 1: Write the proportion equation
257,262.99 : 385,894.63 = 107,421.59 : x - Step 2: Convert to fraction form
257,262.99/385,894.63 = 107,421.59/x - Step 3: Cross multiply
257,262.99x = 385,894.63 × 107,421.59 - Step 4: Simplify right side
257,262.99x = 41,453,415,826.08 - Step 5: Solve for x
x = 41,453,415,826.08/257,262.99 - Step 6: Final answer
x = 161,132.45
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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.