Finding the Fourth Proportional to 257,983.32, 356,001.10 and 143,254.99
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Solution
The fourth proportional to 257,983.32, 356,001.10 and 143,254.99 is: 197,683.07
Step by Step Solution
- Step 1: Write the proportion equation
257,983.32 : 356,001.10 = 143,254.99 : x - Step 2: Convert to fraction form
257,983.32/356,001.10 = 143,254.99/x - Step 3: Cross multiply
257,983.32x = 356,001.10 × 143,254.99 - Step 4: Simplify right side
257,983.32x = 50,998,934,020.49 - Step 5: Solve for x
x = 50,998,934,020.49/257,983.32 - Step 6: Final answer
x = 197,683.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.