Finding the Fourth Proportional to 257,807.09, 386,731.38 and 97,959.63
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Solution
The fourth proportional to 257,807.09, 386,731.38 and 97,959.63 is: 146,947.33
Step by Step Solution
- Step 1: Write the proportion equation
257,807.09 : 386,731.38 = 97,959.63 : x - Step 2: Convert to fraction form
257,807.09/386,731.38 = 97,959.63/x - Step 3: Cross multiply
257,807.09x = 386,731.38 × 97,959.63 - Step 4: Simplify right side
257,807.09x = 37,884,062,894.19 - Step 5: Solve for x
x = 37,884,062,894.19/257,807.09 - Step 6: Final answer
x = 146,947.33
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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.