Finding the Fourth Proportional to 571,389.12, 857,085.12 and 172,031.04
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Solution
The fourth proportional to 571,389.12, 857,085.12 and 172,031.04 is: 258,046.99
Step by Step Solution
- Step 1: Write the proportion equation
571,389.12 : 857,085.12 = 172,031.04 : x - Step 2: Convert to fraction form
571,389.12/857,085.12 = 172,031.04/x - Step 3: Cross multiply
571,389.12x = 857,085.12 × 172,031.04 - Step 4: Simplify right side
571,389.12x = 147,445,244,562.13 - Step 5: Solve for x
x = 147,445,244,562.13/571,389.12 - Step 6: Final answer
x = 258,046.99
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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.