Finding the Fourth Proportional to 402,806.95, 555,862.50 and 221,518.88
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Solution
The fourth proportional to 402,806.95, 555,862.50 and 221,518.88 is: 305,689.96
Step by Step Solution
- Step 1: Write the proportion equation
402,806.95 : 555,862.50 = 221,518.88 : x - Step 2: Convert to fraction form
402,806.95/555,862.50 = 221,518.88/x - Step 3: Cross multiply
402,806.95x = 555,862.50 × 221,518.88 - Step 4: Simplify right side
402,806.95x = 123,134,038,434 - Step 5: Solve for x
x = 123,134,038,434/402,806.95 - Step 6: Final answer
x = 305,689.96
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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.