Finding the Fourth Proportional to 354,421.02, 489,090.18 and 201,475.92
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Solution
The fourth proportional to 354,421.02, 489,090.18 and 201,475.92 is: 278,030.61
Step by Step Solution
- Step 1: Write the proportion equation
354,421.02 : 489,090.18 = 201,475.92 : x - Step 2: Convert to fraction form
354,421.02/489,090.18 = 201,475.92/x - Step 3: Cross multiply
354,421.02x = 489,090.18 × 201,475.92 - Step 4: Simplify right side
354,421.02x = 98,539,893,978.47 - Step 5: Solve for x
x = 98,539,893,978.47/354,421.02 - Step 6: Final answer
x = 278,030.61
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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.