Finding the Fourth Proportional to 282,357.19, 389,658.50 and 155,031.67
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Solution
The fourth proportional to 282,357.19, 389,658.50 and 155,031.67 is: 213,946.76
Step by Step Solution
- Step 1: Write the proportion equation
282,357.19 : 389,658.50 = 155,031.67 : x - Step 2: Convert to fraction form
282,357.19/389,658.50 = 155,031.67/x - Step 3: Cross multiply
282,357.19x = 389,658.50 × 155,031.67 - Step 4: Simplify right side
282,357.19x = 60,409,407,209.54 - Step 5: Solve for x
x = 60,409,407,209.54/282,357.19 - Step 6: Final answer
x = 213,946.76
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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.