Finding the Fourth Proportional to 253,038.42, 349,192.99 and 138,317.54
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Solution
The fourth proportional to 253,038.42, 349,192.99 and 138,317.54 is: 190,878.19
Step by Step Solution
- Step 1: Write the proportion equation
253,038.42 : 349,192.99 = 138,317.54 : x - Step 2: Convert to fraction form
253,038.42/349,192.99 = 138,317.54/x - Step 3: Cross multiply
253,038.42x = 349,192.99 × 138,317.54 - Step 4: Simplify right side
253,038.42x = 48,299,515,362.04 - Step 5: Solve for x
x = 48,299,515,362.04/253,038.42 - Step 6: Final answer
x = 190,878.19
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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.