Finding the Fourth Proportional to 353,420.74, 530,118.36 and 153,741.28
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Solution
The fourth proportional to 353,420.74, 530,118.36 and 153,741.28 is: 230,606.37
Step by Step Solution
- Step 1: Write the proportion equation
353,420.74 : 530,118.36 = 153,741.28 : x - Step 2: Convert to fraction form
353,420.74/530,118.36 = 153,741.28/x - Step 3: Cross multiply
353,420.74x = 530,118.36 × 153,741.28 - Step 4: Simplify right side
353,420.74x = 81,501,075,217.90 - Step 5: Solve for x
x = 81,501,075,217.90/353,420.74 - Step 6: Final answer
x = 230,606.37
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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.