Finding the Fourth Proportional to 361,124.31, 539,315.09 and 290,154.75
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Solution
The fourth proportional to 361,124.31, 539,315.09 and 290,154.75 is: 433,326.78
Step by Step Solution
- Step 1: Write the proportion equation
361,124.31 : 539,315.09 = 290,154.75 : x - Step 2: Convert to fraction form
361,124.31/539,315.09 = 290,154.75/x - Step 3: Cross multiply
361,124.31x = 539,315.09 × 290,154.75 - Step 4: Simplify right side
361,124.31x = 156,484,835,110.18 - Step 5: Solve for x
x = 156,484,835,110.18/361,124.31 - Step 6: Final answer
x = 433,326.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.