Finding the Fourth Proportional to 472,169.64, 651,575.12 and 257,305.12
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Solution
The fourth proportional to 472,169.64, 651,575.12 and 257,305.12 is: 355,070.72
Step by Step Solution
- Step 1: Write the proportion equation
472,169.64 : 651,575.12 = 257,305.12 : x - Step 2: Convert to fraction form
472,169.64/651,575.12 = 257,305.12/x - Step 3: Cross multiply
472,169.64x = 651,575.12 × 257,305.12 - Step 4: Simplify right side
472,169.64x = 167,653,614,440.61 - Step 5: Solve for x
x = 167,653,614,440.61/472,169.64 - Step 6: Final answer
x = 355,070.72
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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.