Finding the Fourth Proportional to 430,899.20, 646,381.20 and 115,349.12
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Solution
The fourth proportional to 430,899.20, 646,381.20 and 115,349.12 is: 173,032.35
Step by Step Solution
- Step 1: Write the proportion equation
430,899.20 : 646,381.20 = 115,349.12 : x - Step 2: Convert to fraction form
430,899.20/646,381.20 = 115,349.12/x - Step 3: Cross multiply
430,899.20x = 646,381.20 × 115,349.12 - Step 4: Simplify right side
430,899.20x = 74,559,502,604.54 - Step 5: Solve for x
x = 74,559,502,604.54/430,899.20 - Step 6: Final answer
x = 173,032.35
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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.