Finding the Fourth Proportional to 420,266.88, 579,881.52 and 245,803.68
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Solution
The fourth proportional to 420,266.88, 579,881.52 and 245,803.68 is: 339,158.33
Step by Step Solution
- Step 1: Write the proportion equation
420,266.88 : 579,881.52 = 245,803.68 : x - Step 2: Convert to fraction form
420,266.88/579,881.52 = 245,803.68/x - Step 3: Cross multiply
420,266.88x = 579,881.52 × 245,803.68 - Step 4: Simplify right side
420,266.88x = 142,537,011,579.99 - Step 5: Solve for x
x = 142,537,011,579.99/420,266.88 - Step 6: Final answer
x = 339,158.33
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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.