Finding the Fourth Proportional to 417,918.25, 576,727.19 and 239,070.25
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Solution
The fourth proportional to 417,918.25, 576,727.19 and 239,070.25 is: 329,916.95
Step by Step Solution
- Step 1: Write the proportion equation
417,918.25 : 576,727.19 = 239,070.25 : x - Step 2: Convert to fraction form
417,918.25/576,727.19 = 239,070.25/x - Step 3: Cross multiply
417,918.25x = 576,727.19 × 239,070.25 - Step 4: Simplify right side
417,918.25x = 137,878,313,495.10 - Step 5: Solve for x
x = 137,878,313,495.10/417,918.25 - Step 6: Final answer
x = 329,916.95
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1.5x scale
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.