Finding the Fourth Proportional to 291,628.20, 437,442.30 and 249,637.80
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Solution
The fourth proportional to 291,628.20, 437,442.30 and 249,637.80 is: 374,456.70
Step by Step Solution
- Step 1: Write the proportion equation
291,628.20 : 437,442.30 = 249,637.80 : x - Step 2: Convert to fraction form
291,628.20/437,442.30 = 249,637.80/x - Step 3: Cross multiply
291,628.20x = 437,442.30 × 249,637.80 - Step 4: Simplify right side
291,628.20x = 109,202,133,398.94 - Step 5: Solve for x
x = 109,202,133,398.94/291,628.20 - Step 6: Final answer
x = 374,456.70
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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.