Finding the Fourth Proportional to 438,656.80, 658,276.80 and 249,116.80
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Solution
The fourth proportional to 438,656.80, 658,276.80 and 249,116.80 is: 373,840.80
Step by Step Solution
- Step 1: Write the proportion equation
438,656.80 : 658,276.80 = 249,116.80 : x - Step 2: Convert to fraction form
438,656.80/658,276.80 = 249,116.80/x - Step 3: Cross multiply
438,656.80x = 658,276.80 × 249,116.80 - Step 4: Simplify right side
438,656.80x = 163,987,809,930.24 - Step 5: Solve for x
x = 163,987,809,930.24/438,656.80 - Step 6: Final answer
x = 373,840.80
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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.