Finding the Fourth Proportional to 372,109.41, 513,448.70 and 219,178.08
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Solution
The fourth proportional to 372,109.41, 513,448.70 and 219,178.08 is: 302,429.06
Step by Step Solution
- Step 1: Write the proportion equation
372,109.41 : 513,448.70 = 219,178.08 : x - Step 2: Convert to fraction form
372,109.41/513,448.70 = 219,178.08/x - Step 3: Cross multiply
372,109.41x = 513,448.70 × 219,178.08 - Step 4: Simplify right side
372,109.41x = 112,536,699,148.61 - Step 5: Solve for x
x = 112,536,699,148.61/372,109.41 - Step 6: Final answer
x = 302,429.06
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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.