Finding the Fourth Proportional to 421,545.42, 581,720.28 and 230,554.68
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Solution
The fourth proportional to 421,545.42, 581,720.28 and 230,554.68 is: 318,158.68
Step by Step Solution
- Step 1: Write the proportion equation
421,545.42 : 581,720.28 = 230,554.68 : x - Step 2: Convert to fraction form
421,545.42/581,720.28 = 230,554.68/x - Step 3: Cross multiply
421,545.42x = 581,720.28 × 230,554.68 - Step 4: Simplify right side
421,545.42x = 134,118,333,004.91 - Step 5: Solve for x
x = 134,118,333,004.91/421,545.42 - Step 6: Final answer
x = 318,158.68
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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.