Finding the Fourth Proportional to 316,709.19, 436,937.09 and 180,750.69
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Solution
The fourth proportional to 316,709.19, 436,937.09 and 180,750.69 is: 249,366.55
Step by Step Solution
- Step 1: Write the proportion equation
316,709.19 : 436,937.09 = 180,750.69 : x - Step 2: Convert to fraction form
316,709.19/436,937.09 = 180,750.69/x - Step 3: Cross multiply
316,709.19x = 436,937.09 × 180,750.69 - Step 4: Simplify right side
316,709.19x = 78,976,679,600.34 - Step 5: Solve for x
x = 78,976,679,600.34/316,709.19 - Step 6: Final answer
x = 249,366.55
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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.