Finding the Fourth Proportional to 245,386.08, 368,079.35 and 76,919.58
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Solution
The fourth proportional to 245,386.08, 368,079.35 and 76,919.58 is: 115,379.44
Step by Step Solution
- Step 1: Write the proportion equation
245,386.08 : 368,079.35 = 76,919.58 : x - Step 2: Convert to fraction form
245,386.08/368,079.35 = 76,919.58/x - Step 3: Cross multiply
245,386.08x = 368,079.35 × 76,919.58 - Step 4: Simplify right side
245,386.08x = 28,312,508,624.08 - Step 5: Solve for x
x = 28,312,508,624.08/245,386.08 - Step 6: Final answer
x = 115,379.44
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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.