Finding the Fourth Proportional to 286,721.08, 395,683.68 and 157,652.86
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Solution
The fourth proportional to 286,721.08, 395,683.68 and 157,652.86 is: 217,565.67
Step by Step Solution
- Step 1: Write the proportion equation
286,721.08 : 395,683.68 = 157,652.86 : x - Step 2: Convert to fraction form
286,721.08/395,683.68 = 157,652.86/x - Step 3: Cross multiply
286,721.08x = 395,683.68 × 157,652.86 - Step 4: Simplify right side
286,721.08x = 62,380,663,807.32 - Step 5: Solve for x
x = 62,380,663,807.32/286,721.08 - Step 6: Final answer
x = 217,565.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.