Finding the Fourth Proportional to 443,395.19, 611,885.35 and 239,446.09
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Solution
The fourth proportional to 443,395.19, 611,885.35 and 239,446.09 is: 330,435.60
Step by Step Solution
- Step 1: Write the proportion equation
443,395.19 : 611,885.35 = 239,446.09 : x - Step 2: Convert to fraction form
443,395.19/611,885.35 = 239,446.09/x - Step 3: Cross multiply
443,395.19x = 611,885.35 × 239,446.09 - Step 4: Simplify right side
443,395.19x = 146,513,553,987.17 - Step 5: Solve for x
x = 146,513,553,987.17/443,395.19 - Step 6: Final answer
x = 330,435.60
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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.