Finding the Fourth Proportional to 390,160.19, 585,486.33 and 153,472.12
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Solution
The fourth proportional to 390,160.19, 585,486.33 and 153,472.12 is: 230,304.96
Step by Step Solution
- Step 1: Write the proportion equation
390,160.19 : 585,486.33 = 153,472.12 : x - Step 2: Convert to fraction form
390,160.19/585,486.33 = 153,472.12/x - Step 3: Cross multiply
390,160.19x = 585,486.33 × 153,472.12 - Step 4: Simplify right side
390,160.19x = 89,855,826,256.88 - Step 5: Solve for x
x = 89,855,826,256.88/390,160.19 - Step 6: Final answer
x = 230,304.96
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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.