Finding the Fourth Proportional to 286,989.48, 430,483.50 and 136,774.44
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Solution
The fourth proportional to 286,989.48, 430,483.50 and 136,774.44 is: 205,161.32
Step by Step Solution
- Step 1: Write the proportion equation
286,989.48 : 430,483.50 = 136,774.44 : x - Step 2: Convert to fraction form
286,989.48/430,483.50 = 136,774.44/x - Step 3: Cross multiply
286,989.48x = 430,483.50 × 136,774.44 - Step 4: Simplify right side
286,989.48x = 58,879,139,641.74 - Step 5: Solve for x
x = 58,879,139,641.74/286,989.48 - Step 6: Final answer
x = 205,161.32
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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.