Finding the Fourth Proportional to 429,070.80, 643,032.99 and 226,253.28
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Solution
The fourth proportional to 429,070.80, 643,032.99 and 226,253.28 is: 339,077.66
Step by Step Solution
- Step 1: Write the proportion equation
429,070.80 : 643,032.99 = 226,253.28 : x - Step 2: Convert to fraction form
429,070.80/643,032.99 = 226,253.28/x - Step 3: Cross multiply
429,070.80x = 643,032.99 × 226,253.28 - Step 4: Simplify right side
429,070.80x = 145,488,323,135.71 - Step 5: Solve for x
x = 145,488,323,135.71/429,070.80 - Step 6: Final answer
x = 339,077.66
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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.