Finding the Fourth Proportional to 391,270.01, 539,972.68 and 219,177.62
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Solution
The fourth proportional to 391,270.01, 539,972.68 and 219,177.62 is: 302,476.35
Step by Step Solution
- Step 1: Write the proportion equation
391,270.01 : 539,972.68 = 219,177.62 : x - Step 2: Convert to fraction form
391,270.01/539,972.68 = 219,177.62/x - Step 3: Cross multiply
391,270.01x = 539,972.68 × 219,177.62 - Step 4: Simplify right side
391,270.01x = 118,349,924,167.56 - Step 5: Solve for x
x = 118,349,924,167.56/391,270.01 - Step 6: Final answer
x = 302,476.35
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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.