Finding the Fourth Proportional to 274,368.69, 378,643.46 and 153,502.74
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Solution
The fourth proportional to 274,368.69, 378,643.46 and 153,502.74 is: 211,841.99
Step by Step Solution
- Step 1: Write the proportion equation
274,368.69 : 378,643.46 = 153,502.74 : x - Step 2: Convert to fraction form
274,368.69/378,643.46 = 153,502.74/x - Step 3: Cross multiply
274,368.69x = 378,643.46 × 153,502.74 - Step 4: Simplify right side
274,368.69x = 58,122,808,593.08 - Step 5: Solve for x
x = 58,122,808,593.08/274,368.69 - Step 6: Final answer
x = 211,841.99
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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.