Finding the Fourth Proportional to 542,645.19, 813,856.95 and 205,569.63
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Solution
The fourth proportional to 542,645.19, 813,856.95 and 205,569.63 is: 308,312.46
Step by Step Solution
- Step 1: Write the proportion equation
542,645.19 : 813,856.95 = 205,569.63 : x - Step 2: Convert to fraction form
542,645.19/813,856.95 = 205,569.63/x - Step 3: Cross multiply
542,645.19x = 813,856.95 × 205,569.63 - Step 4: Simplify right side
542,645.19x = 167,304,272,084.43 - Step 5: Solve for x
x = 167,304,272,084.43/542,645.19 - Step 6: Final answer
x = 308,312.46
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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.