Finding the Fourth Proportional to 212,118.41, 292,681.42 and 118,987.11
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Solution
The fourth proportional to 212,118.41, 292,681.42 and 118,987.11 is: 164,178.66
Step by Step Solution
- Step 1: Write the proportion equation
212,118.41 : 292,681.42 = 118,987.11 : x - Step 2: Convert to fraction form
212,118.41/292,681.42 = 118,987.11/x - Step 3: Cross multiply
212,118.41x = 292,681.42 × 118,987.11 - Step 4: Simplify right side
212,118.41x = 34,825,316,019.03 - Step 5: Solve for x
x = 34,825,316,019.03/212,118.41 - Step 6: Final answer
x = 164,178.66
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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.