Finding the Fourth Proportional to 542,948.42, 813,938.68 and 206,225.54
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Solution
The fourth proportional to 542,948.42, 813,938.68 and 206,225.54 is: 309,154.49
Step by Step Solution
- Step 1: Write the proportion equation
542,948.42 : 813,938.68 = 206,225.54 : x - Step 2: Convert to fraction form
542,948.42/813,938.68 = 206,225.54/x - Step 3: Cross multiply
542,948.42x = 813,938.68 × 206,225.54 - Step 4: Simplify right side
542,948.42x = 167,854,943,050.25 - Step 5: Solve for x
x = 167,854,943,050.25/542,948.42 - Step 6: Final answer
x = 309,154.49
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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.