Finding the Fourth Proportional to 383,325.60, 528,989.88 and 213,565.68
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Solution
The fourth proportional to 383,325.60, 528,989.88 and 213,565.68 is: 294,720.95
Step by Step Solution
- Step 1: Write the proportion equation
383,325.60 : 528,989.88 = 213,565.68 : x - Step 2: Convert to fraction form
383,325.60/528,989.88 = 213,565.68/x - Step 3: Cross multiply
383,325.60x = 528,989.88 × 213,565.68 - Step 4: Simplify right side
383,325.60x = 112,974,083,435.32 - Step 5: Solve for x
x = 112,974,083,435.32/383,325.60 - Step 6: Final answer
x = 294,720.95
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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.