Finding the Fourth Proportional to 282,919.24, 390,420.76 and 155,594.88
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Solution
The fourth proportional to 282,919.24, 390,420.76 and 155,594.88 is: 214,716.65
Step by Step Solution
- Step 1: Write the proportion equation
282,919.24 : 390,420.76 = 155,594.88 : x - Step 2: Convert to fraction form
282,919.24/390,420.76 = 155,594.88/x - Step 3: Cross multiply
282,919.24x = 390,420.76 × 155,594.88 - Step 4: Simplify right side
282,919.24x = 60,747,471,301.71 - Step 5: Solve for x
x = 60,747,471,301.71/282,919.24 - Step 6: Final answer
x = 214,716.65
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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.