Finding the Fourth Proportional to 257,984.99, 386,827.12 and 100,028.91
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Solution
The fourth proportional to 257,984.99, 386,827.12 and 100,028.91 is: 149,985.06
Step by Step Solution
- Step 1: Write the proportion equation
257,984.99 : 386,827.12 = 100,028.91 : x - Step 2: Convert to fraction form
257,984.99/386,827.12 = 100,028.91/x - Step 3: Cross multiply
257,984.99x = 386,827.12 × 100,028.91 - Step 4: Simplify right side
257,984.99x = 38,693,895,172.04 - Step 5: Solve for x
x = 38,693,895,172.04/257,984.99 - Step 6: Final answer
x = 149,985.06
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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.