Finding the Fourth Proportional to 249,631.80, 374,447.70 and 187,423.80
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Solution
The fourth proportional to 249,631.80, 374,447.70 and 187,423.80 is: 281,135.70
Step by Step Solution
- Step 1: Write the proportion equation
249,631.80 : 374,447.70 = 187,423.80 : x - Step 2: Convert to fraction form
249,631.80/374,447.70 = 187,423.80/x - Step 3: Cross multiply
249,631.80x = 374,447.70 × 187,423.80 - Step 4: Simplify right side
249,631.80x = 70,180,410,835.26 - Step 5: Solve for x
x = 70,180,410,835.26/249,631.80 - Step 6: Final answer
x = 281,135.70
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1.5x scale
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.