Finding the Fourth Proportional to 215,029.72, 296,779.80 and 124,373.08
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Solution
The fourth proportional to 215,029.72, 296,779.80 and 124,373.08 is: 171,657.28
Step by Step Solution
- Step 1: Write the proportion equation
215,029.72 : 296,779.80 = 124,373.08 : x - Step 2: Convert to fraction form
215,029.72/296,779.80 = 124,373.08/x - Step 3: Cross multiply
215,029.72x = 296,779.80 × 124,373.08 - Step 4: Simplify right side
215,029.72x = 36,911,417,807.78 - Step 5: Solve for x
x = 36,911,417,807.78/215,029.72 - Step 6: Final answer
x = 171,657.28
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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.