Finding the Fourth Proportional to 304,417.99, 420,214.58 and 272,531.47
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Solution
The fourth proportional to 304,417.99, 420,214.58 and 272,531.47 is: 376,198.84
Step by Step Solution
- Step 1: Write the proportion equation
304,417.99 : 420,214.58 = 272,531.47 : x - Step 2: Convert to fraction form
304,417.99/420,214.58 = 272,531.47/x - Step 3: Cross multiply
304,417.99x = 420,214.58 × 272,531.47 - Step 4: Simplify right side
304,417.99x = 114,521,695,840.18 - Step 5: Solve for x
x = 114,521,695,840.18/304,417.99 - Step 6: Final answer
x = 376,198.84
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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.