Finding the Fourth Proportional to 279,175.60, 418,763.40 and 167,201.20
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Solution
The fourth proportional to 279,175.60, 418,763.40 and 167,201.20 is: 250,801.80
Step by Step Solution
- Step 1: Write the proportion equation
279,175.60 : 418,763.40 = 167,201.20 : x - Step 2: Convert to fraction form
279,175.60/418,763.40 = 167,201.20/x - Step 3: Cross multiply
279,175.60x = 418,763.40 × 167,201.20 - Step 4: Simplify right side
279,175.60x = 70,017,742,996.08 - Step 5: Solve for x
x = 70,017,742,996.08/279,175.60 - Step 6: Final answer
x = 250,801.80
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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.