Finding the Fourth Proportional to 257,146.63, 385,781.10 and 107,303.65
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Solution
The fourth proportional to 257,146.63, 385,781.10 and 107,303.65 is: 160,980.99
Step by Step Solution
- Step 1: Write the proportion equation
257,146.63 : 385,781.10 = 107,303.65 : x - Step 2: Convert to fraction form
257,146.63/385,781.10 = 107,303.65/x - Step 3: Cross multiply
257,146.63x = 385,781.10 × 107,303.65 - Step 4: Simplify right side
257,146.63x = 41,395,720,131.02 - Step 5: Solve for x
x = 41,395,720,131.02/257,146.63 - Step 6: Final answer
x = 160,980.99
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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.