Finding the Fourth Proportional to 346,813.03, 478,634.84 and 217,772.74
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Solution
The fourth proportional to 346,813.03, 478,634.84 and 217,772.74 is: 300,547.01
Step by Step Solution
- Step 1: Write the proportion equation
346,813.03 : 478,634.84 = 217,772.74 : x - Step 2: Convert to fraction form
346,813.03/478,634.84 = 217,772.74/x - Step 3: Cross multiply
346,813.03x = 478,634.84 × 217,772.74 - Step 4: Simplify right side
346,813.03x = 104,233,620,566.26 - Step 5: Solve for x
x = 104,233,620,566.26/346,813.03 - Step 6: Final answer
x = 300,547.01
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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.