Finding the Fourth Proportional to 292,368.13, 403,463.68 and 163,308.40
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Solution
The fourth proportional to 292,368.13, 403,463.68 and 163,308.40 is: 225,363.17
Step by Step Solution
- Step 1: Write the proportion equation
292,368.13 : 403,463.68 = 163,308.40 : x - Step 2: Convert to fraction form
292,368.13/403,463.68 = 163,308.40/x - Step 3: Cross multiply
292,368.13x = 403,463.68 × 163,308.40 - Step 4: Simplify right side
292,368.13x = 65,889,009,810.07 - Step 5: Solve for x
x = 65,889,009,810.07/292,368.13 - Step 6: Final answer
x = 225,363.17
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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.