Finding the Fourth Proportional to 472,164.36, 708,038.18 and 135,128.32
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Solution
The fourth proportional to 472,164.36, 708,038.18 and 135,128.32 is: 202,632.85
Step by Step Solution
- Step 1: Write the proportion equation
472,164.36 : 708,038.18 = 135,128.32 : x - Step 2: Convert to fraction form
472,164.36/708,038.18 = 135,128.32/x - Step 3: Cross multiply
472,164.36x = 708,038.18 × 135,128.32 - Step 4: Simplify right side
472,164.36x = 95,676,009,759.26 - Step 5: Solve for x
x = 95,676,009,759.26/472,164.36 - Step 6: Final answer
x = 202,632.85
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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.