Finding the Fourth Proportional to 383,915.14, 575,626.65 and 159,430.53
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Solution
The fourth proportional to 383,915.14, 575,626.65 and 159,430.53 is: 239,043.61
Step by Step Solution
- Step 1: Write the proportion equation
383,915.14 : 575,626.65 = 159,430.53 : x - Step 2: Convert to fraction form
383,915.14/575,626.65 = 159,430.53/x - Step 3: Cross multiply
383,915.14x = 575,626.65 × 159,430.53 - Step 4: Simplify right side
383,915.14x = 91,772,461,111.26 - Step 5: Solve for x
x = 91,772,461,111.26/383,915.14 - Step 6: Final answer
x = 239,043.61
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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.