Finding the Fourth Proportional to 279,209.48, 418,655.08 and 190,570.28
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Solution
The fourth proportional to 279,209.48, 418,655.08 and 190,570.28 is: 285,746.80
Step by Step Solution
- Step 1: Write the proportion equation
279,209.48 : 418,655.08 = 190,570.28 : x - Step 2: Convert to fraction form
279,209.48/418,655.08 = 190,570.28/x - Step 3: Cross multiply
279,209.48x = 418,655.08 × 190,570.28 - Step 4: Simplify right side
279,209.48x = 79,783,215,819.02 - Step 5: Solve for x
x = 79,783,215,819.02/279,209.48 - Step 6: Final answer
x = 285,746.80
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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.