Finding the Fourth Proportional to 257,117.09, 385,924.40 and 124,090.99
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Solution
The fourth proportional to 257,117.09, 385,924.40 and 124,090.99 is: 186,256.54
Step by Step Solution
- Step 1: Write the proportion equation
257,117.09 : 385,924.40 = 124,090.99 : x - Step 2: Convert to fraction form
257,117.09/385,924.40 = 124,090.99/x - Step 3: Cross multiply
257,117.09x = 385,924.40 × 124,090.99 - Step 4: Simplify right side
257,117.09x = 47,889,739,741.23 - Step 5: Solve for x
x = 47,889,739,741.23/257,117.09 - Step 6: Final answer
x = 186,256.54
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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.