Finding the Fourth Proportional to 438,248.84, 657,448.68 and 138,724.88
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Solution
The fourth proportional to 438,248.84, 657,448.68 and 138,724.88 is: 208,111.19
Step by Step Solution
- Step 1: Write the proportion equation
438,248.84 : 657,448.68 = 138,724.88 : x - Step 2: Convert to fraction form
438,248.84/657,448.68 = 138,724.88/x - Step 3: Cross multiply
438,248.84x = 657,448.68 × 138,724.88 - Step 4: Simplify right side
438,248.84x = 91,204,489,239.16 - Step 5: Solve for x
x = 91,204,489,239.16/438,248.84 - Step 6: Final answer
x = 208,111.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.