Finding the Fourth Proportional to 420,055.08, 579,655.08 and 238,743.06
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Solution
The fourth proportional to 420,055.08, 579,655.08 and 238,743.06 is: 329,453.53
Step by Step Solution
- Step 1: Write the proportion equation
420,055.08 : 579,655.08 = 238,743.06 : x - Step 2: Convert to fraction form
420,055.08/579,655.08 = 238,743.06/x - Step 3: Cross multiply
420,055.08x = 579,655.08 × 238,743.06 - Step 4: Simplify right side
420,055.08x = 138,388,627,543.75 - Step 5: Solve for x
x = 138,388,627,543.75/420,055.08 - Step 6: Final answer
x = 329,453.53
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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.