Finding the Fourth Proportional to 278,374.95, 417,558.78 and 68,014.71
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Solution
The fourth proportional to 278,374.95, 417,558.78 and 68,014.71 is: 102,021.17
Step by Step Solution
- Step 1: Write the proportion equation
278,374.95 : 417,558.78 = 68,014.71 : x - Step 2: Convert to fraction form
278,374.95/417,558.78 = 68,014.71/x - Step 3: Cross multiply
278,374.95x = 417,558.78 × 68,014.71 - Step 4: Simplify right side
278,374.95x = 28,400,139,329.65 - Step 5: Solve for x
x = 28,400,139,329.65/278,374.95 - Step 6: Final answer
x = 102,021.17
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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.