Finding the Fourth Proportional to 310,002.12, 427,788.36 and 172,189.99
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Solution
The fourth proportional to 310,002.12, 427,788.36 and 172,189.99 is: 237,614.10
Step by Step Solution
- Step 1: Write the proportion equation
310,002.12 : 427,788.36 = 172,189.99 : x - Step 2: Convert to fraction form
310,002.12/427,788.36 = 172,189.99/x - Step 3: Cross multiply
310,002.12x = 427,788.36 × 172,189.99 - Step 4: Simplify right side
310,002.12x = 73,660,873,430.52 - Step 5: Solve for x
x = 73,660,873,430.52/310,002.12 - Step 6: Final answer
x = 237,614.10
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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.